"I am really going to miss Sarah Jane Smith. I love all of her programmes, they were very imaginative. R.I.P Elizabeth."
Sam, 6, Warrington, England
"I feel sorry for the actors who play Clyde, Rani and Luke. They must have been close to her."
David, 12, Bristol, England
"She was great at fighting, she was very clever and she made everything realistic as she was a great actress."
Scarlet, 8 Worcestershire, England
"She was the best, I just loved the way she acted. My dad is very sad too."
Owen, 7, London, England
"She's always going to be remembered by me, and by other people, for her great talents. R.I.P Elisabeth Sladen."
Numaan, 11, Surrey, England
"Sarah Jane made me happy and when she died I was not very happy. My mummy said she will be an angel and maybe she will fight monsters!"
Ben, 8, Liverpool, England
"I cried when I found out. She was amazing and inspired me. She will be missed."
Hebe, 13, London, England
"When I heard the news I was horrified. Elisabeth was my favourite companion and my favourite memories of her are her defeating alien life forms as Sarah Jane Smith, with Maria, Clyde, Rani and Luke."
William, 11, Conwy, Wales
"I was sad to hear the news. My thoughts go out to her family. I enjoyed watching her in the Sarah Jane Adventures and my dad did the same with Doctor Who when he was my age."
Megan, 10, Hampshire, England
"I will deeply miss Elizabeth being on our TV screens. She brought a real flair to Monday nights (and on occasions Saturday nights!) she will be missed by everyone who ever watched SJA or Doctor Who."
Joseph, 12, Huddersfield, England
"Elisabeth Sladen was a fantastic Doctor Who assistant and Sarah Jane was the best! She will be missed by millions."
Libby, 7, Hertfordshire, England
"She was a BRILLIANT actor and I really loved her in SJA, it won't be the same anymore! My thoughts are with her family. Elisabeth was one the best actors in Britain; she's a legend! My heart is full of great memories that will definitely not be forgotten!"
Sky, 11, London, England
"This is a very sad thing. I watched the show from the very start. I am going to miss her."
Claire, 14, Surrey, England
"My favourite memory is the first episode of the SJ Adventures, The Bubble Shock. She was an inspirational actress and will be sorely missed by me and all who knew her. God bless her."
Georgia, 9, London, England
"Sarah Jane was a legend, she touched lots of people's hearts and her spirit will live on forever."
Bethany, 11, Hull, England
"She was the best alien hunter, even with Ruby White!"
Rebecca, 10, Yorkshire, England
"Me and my best friend Pearce were absolute No. 1 fans of The Sarah Jane Adventures. Last December, we each wrote a letter to her and afterwards we received an autograph. When the news broke I was very shocked and I cannot help but look at my autograph picture and think what a great actress she was."
Hannah, 10, Manchester, England
"Elisabeth passing away will leave a huge hole in the world of Doctor Who. She was an amazing actress, and an amazing person who didn't deserve to go this young. Even though I never met her I felt like I knew her just by watching her. I along with many people will miss her greatly."
Megan, 13, West Midlands, England
"I will miss Elisabeth loads, she was an amazing actress and a good role model for children like me."
Ally, 11, Staffordshire, England
"Even though I didn't watch the Sarah Jane adventures much I just loved watching it when I could. Elisabeth was a fantastic person and a strong woman for fighting cancer. My dad died of cancer one year ago and right now my thoughts are with the family and the fans of this beloved actress! R.I.P. Elizabeth."
Lucy, 14, Glasgow, Scotland
"Elizabeth was a great actress and has entertained everyone in my house. We miss her lots!! Xx"
Tasha, 11, Great Yarmouth, England
"Elisabeth Sladen was a fantastic, witty and hugely funny actress and I will miss her starring in the Sarah-Jane adventures and starring alongside The Doctor. She will be hugely missed by everybody."
Sarah, 13, Manchester, England
"She lit up the programme and always seemed so healthy on the show, thank you for the memories, rest in peace."
George, 12, Leicester, England
"This is really upsetting news. She was the best actress ever. Rest in peace, I will never ever forget you."
Grace , 11, London , England
"She was such a great actress and a great person as well. I first saw her in Doctor Who in the episode School Reunion and since then I have watched the Sarah Jane Adventures and all the old episodes with her in. She was loved by everyone and will be missed. R.I.P."
Adam, 14, Southampton, England
"I will miss you very much, thank you for being a big part of Doctor Who. My mummy and I send you our love. xx"
Joseph, 7, Wales
"Elisabeth was a really good person on the Sarah Jane Adventures and she was excellent at fighting the aliens and saving the world."
Mia, 8, Hull, England
"I miss her so much as she was my best actress on CBBC. Rest in peace, love you Elisabeth."
Milcka, 11, London, England
"I really loved Elisabeth, it was really cool how she fought those aliens, no one could replace her!"
Courtney, 11, Durham, England
"I will always be a massive fan of Sarah Jane, I will miss her loads. I have an autograph from her which I will treasure forever."
Alexandra, 7, Suffolk, England
"Elisabeth gave inspiration to children and adults all over the UK. She was a role model to many people and all are sad at her death."
Charlie, 11, Hertfordshire, England
"I will really miss The Sarah Jane Adventures as it has been my favourite show and is even extremely popular here in Melbourne. I have seen all of the episodes, including the ones from Doctor Who."
James, 12, Melbourne, Australia
"Elisabeth will be missed greatly. No one is as good an actress as her. She is the only good alien-fighting actress in the world, I will really miss her. When I found out my heart sank and I was devastated. Best Doctor Who companion ever."
Matthew, 13, Durrington
"I am so sad, Sarah was my idol. I know all the people who worked with Sarah in The Sarah Jane Adventures will be so upset."
Charlotte, 10, Hull
"Sarah Jane Adventures was just brilliant and Elisabeth just made it so special and I will miss her dearly. Doctor Who will never be the same without the small but special appearances of Lis! :)
Kacie, 12, Newport
"I was devastated when I heard the news about Elizabeth Sladen. I loved The Sarah Jane Adventures and I hope that they carry it on in her memory."
Harry, 12, Newcastle
"It's one thing to change the face of British sci-fi television, but it's something else to bring this to kids. No other program will ever even compare to SJA. A remarkable actress. Thank you, Elisabeth Sladen, for bringing adventure to our screens."
Alex, 13, Peterborough
"I'm really sad about Elisabeth passing away. The Sarah Jane Adventures was my favourite CBBC show and everyone in our family was shocked when we heard about it, my sympathy goes to Elisabeth's family."
Charlotte, 13, Bridlington
"Elisabeth was my favourite person in the whole world I can not believe she was 63, she looked so young. I was crying when I heard on the news that she had died. I am very sorry for her daughter Sadie and her husband."
Tilly, 10, Swynnerton
"I was so sad when my cousin told me that she had died, but she hasn't really because if so many people remember her then she will never die."
Leyo, 11, Lewisham
"She can't be gone... and she isn't. Cancer may take people but it leaves behind memories which we all will treasure. Thank you Elisabeth, for bringing joy to people of all ages."
Katie, 12, Leamington Spa
"Elisabeth was so cheerful on TV, no one knew she was battling cancer and that was one of her strong points! Elisabeth you will be sorely missed by all R.I.P."
Amy, 12, Yorkshire
"Poor Elisabeth, I feel sorry for her and it was devastating news when I heard about her death, I liked her acting when you were saving the world. I feel so sorry but I liked you as a friend - I wish I saw you in real life!"
Miski, 9, Manchester
"There was no other actress like Sarah Jane. She was the best ALIEN FIGHTER ever. We will miss her......."
Mimi & Libby, 10 & 9, Nottingham
"She was the world's most vibrant and amazing woman. She will be remembered through time and space."
Marcus, 13, Corby
"Elisabeth was a sensation to everybody, she will be dearly missed."
Patrick, 11, Crumpsall
"Great person. Great actress. Great show. We will miss you..."
Gareth, 10, Cambridge
"I am in a state of shock! I am really going to miss SJA, my life won't be the same without it. I have been a die-hard Doctor Who fan since the age of 7, and an SJA fan since it first started, and it's so upsetting when someone you look up to has died. R.I.P Sarah-Jane. Gone, but never forgotten."
Emmie, 13, Oxfordshire
"Elizabeth was my hero. I copied off her as she would never give up and I would never give up. When I was told I ran to my mum's car, and when she saw me she knew I was crying. I WILL REALLY MISS HER. :( "
Laura, 11, Hanworth
"We'll miss you Elizabeth Sladen, you were a great actress and I loved the Sarah Jane Adventures!! I wish I could save the world like you!"
Krisi, 9-and-a-half, Sutton
"Elisabeth Sladen was a big part of Doctor Who history and she will be missed."
Craig, 11, Oldbury
"We will all miss you heaps, lovely Lis. I don't believe that anyone who has heard about this won't have shed a tear today. You were an inspiration to us all and will be sorely missed."
Bea, 10, London
"When my mum told me that she[Elisabeth] had sadly died I cried, and this has made my mind up that I will walk for Cancer Research and will do it for Elisabeth. May her sole still rest in our hearts. We will miss you Sarah Jane Smith."
Rebecca, 9, Colgate
"When I first heard that Elisabeth had died I was shocked. I just couldn't believe it! It can't be true. But I would just like to say that she was a wonderful actress and person. She truly put everything into the show to try and make it amazing. The show just brings a smile to my face. It will be hard to watch now knowing that she is no longer here. It's just too sad."
Serena, 12, Chester
"Five years ago, as an excited nine-year-old, I first watched Elisabeth in Doctor Who and from there on in she has been a true inspiration to me, and many other children I am sure. She will be deeply missed by many and my thoughts are with her family. Thank you Lis for being a truly amazing and charismatic person! I will never forget you."
Eleanor, 14, Pershore
"I can't believe she has gone. She was one of the first companions I watched and I then decided she was the best companion. I loved watching her in the Sarah Jane adventures, and I never would have guessed she was 63. She didn't look ill and she always made me laugh. I hope they show the episodes they recorded with her in, so they can show how amazing she is. She will always be remembered, but I was so devastated when I had heard she had gone. It is so sad and I really am disappointed she is gone. I wanted to meet her, and that never happened. Elisabeth Sladen is brilliant and no one can ever replace her. RIP."
Jade, 15, Tadley
"I watch CBBC with my little brother and The Sarah Jane Adventures was always my favourite. Elisabeth will be missed :( R.I.P."
Hayley, 14, Wicklow
"Even though I'm a little old to be watching The Sarah Jane Adventures, Elisabeth was an amazing actress and I was never disappointed to see the new SJA on CBBC. We will always remember you Lis."
Chloe, 15, Southampton
"She was very good at discovering the bad guys. We will miss her and the great TV show."
Cameron, 7, Kent, England
"I loved SJA and Doctor Who and I loved Elisabeth's character. K9 will miss her greatly as will everybody else."
Lydia, 12, Leicester, England
"I feel very sad and my mum started to cry as she watched Elisabeth when she was little in Doctor Who. We will both miss her."
David, 9, Essex, England
"Sarah Jane was a super hero and she would always save the day for Luke, Clyde and Rani. I will miss her on telly."
Charlotte, 8, Lincolnshire, England
"I loved the Sarah Jane Adventures, it was the one show I never missed. I feel sympathy for her family. I lost my grandad to cancer, so I get how they are feeling."
Megan, 12, Staffordshire, England
"She was a brilliant actress, in the Lost Boy episode she was really crying."
Cameron, 12, Herefordshire, England
"There will be another star in the sky shining brighter than the rest. May she rest in peace."
Emma, 10, Devon, England
"She was an amazing actress and an amazing person. Me and my little sister really enjoyed watching Sarah Jane and I think everyone is going to miss her lots."
Tilly, 10, York, England
"Elisabeth was an incredible star, she will always be remembered."
Imogen, 10, Surrey, England
"She was an inspiration to us all. I will miss her."
Robert, 10, Somerset, England
"Your programmes are stunning, we are so sorry to hear this news."
Zoe and Jessica, 6 and 8, Cheshire, England
"I'm really upset. My little sister Rhiannon loves it so much. We'll both miss Elisabeth but we will remember her."
Emine, 9, Co. Armagh, N. Ireland
"I was really upset about this. I love SJA and I never knew Elisabeth was sick. Her family must be really sad."
Genevieve, 9, London, England
"Watching the Sarah Jane adventures won't be the same for me knowing that she has passed away. She was such an amazing actress and I'm really going to miss her."
Veronica, 12, Surrey, England
"We have always liked Elisabeth. We were extremely sad when we heard the news."
Sula and Sasha, 9, Huddersfield, England
"I felt very upset when I heard. She was a fantastic actress. I will miss Elisabeth, she was fun and inspiring to watch. I have many memories but my favourite episode was The Death of the Doctor."
Lauren, 12, Suffolk, England
"All my family enjoyed the Sarah Jane Adventures, it is fun exciting and amazing. I hope it goes on in the future."
Ethan, 10, Isle of Wight, England
"I heard they were in the middle of filming Series 5 of SJA. Maybe they could show episodes they have made in memory of her."
Miles, 11, Cheshire, England
"Hearing the news I am distraught because since the show started I've watched every single episode."
Teagan, 10, Cumbria, England
"I will not forget the first time I saw her on the television. She will always be remembered."
Matthew, 11, Liverpool, England
"I am very sad that Elisabeth has died, I think she was a brilliant actor and I will miss her loads."
Jess, 11, Derbyshire, England
"Elisabeth will be greatly missed. Because she worked on Doctor Who, she knew what she was talking about. I hope that they will make a new series of SJA but with Clyde, Luke, Rani and K-9 as the lead roles, showing how they cope against the aliens without Sarah Jane. R.I.P Elisabeth Sladen."
Rebecca, 14, Kent, England
"Elisabeth has been doing Doctor Who for so long, she was a great Sarah Jane and no one will do a better job than her."
Rose, 8, Kent, England
"I will miss her saving the world in the Sarah Jane Adventures. My mum's shown me the videos of Elisabeth in the 1970s, she was AMAZING!"
Jannine, 13, Stoke on Trent, England
"She was so good at acting and catching aliens and all sorts of creatures. I will miss watching her."
Kingsley, 11, Ceredigion, Wales
"When I found out I was so sad because I loved watching the Sarah Jane Adventures. In the memory of the show I would like to say thank you to Elisabeth for being a star."
Georgia, 12, Bolton, England
"I couldn't believe what I was hearing, I burst out crying as soon as I heard it. She was and still is the best actress on TV."
Emma, 9, Bournemouth, England
"It's one thing to change the face of British sci-fi television, but it's something else to bring this to kids. No other programme will ever even compare to SJA. A remarkable actress. Thank you Elisabeth Sladen for bringing adventure to our screens."
Alex, 13, Peterborough, England
"I'm really sad about Elisabeth passing away. The Sarah Jane Adventures was my favourite CBBC show and everyone in our family was shocked when we heard about it. My sympathy goes with Elisabeth's family."
Charlotte, 13, Yorkshire, England
"Elisabeth was a very talented actress and she will be missed a lot. She was an inspirational hero. My thoughts go out to the family. R.I.P Elisabeth."
Clare, 13, Belfast, N. Ireland
"She dedicated her life to entertaining others and I would just love to say thank you and hope God will give you a perfect heaven."
Mohammed, 12, Birmingham, England
"Elisabeth, as I sit here crying and typing this I have to say you were a hero! You can never be replaced and I will remember you in my heart forever. You were a great woman and I hope you had an amazing life."
Cameron, Edinburgh, Scotland
"I think she will be sorely missed. She was a real legend."
Ellie, 14, Manchester, England
"When my friend told me, I didn't believe him. I refused to believe one of the greatest actresses had died. She will never be forgotten."
Noama, 11, Gloucestershire, England
"I can speak for all the children as to say that the young generation will miss her dearly."
Louis, 10, London, England
"She will be sadly missed and has achieved a lot in her time."
Jordan, 12, Hull, England
"Elisabeth Sladen - she was a star. Me and my brother watched her whenever she came on the television. But when I heard the devastating news it was extremely upsetting. We will miss her dearly."
Mina, 11, Manchester, England
"She was an inspiring woman. I cannot believe she has died. Rest in peace Elisabeth Sladen."
Matthew, 10, Wiltshire, England
"I'm sure that a lot of people like me were very upset about the news. She was an amazing actress and I always loved The Sarah Jane Adventures."
Mollie, 14, Nottinghamshire, England
"I can't believe she's gone, it just hasn't sunk in. I couldn't stop crying when I found out. The world has lost an amazing woman. In the words of The Doctor, 'Goodbye my Sarah Jane'."
Emily, 14, Plymouth, England
"She was an amazing actress and she will be missed by all. Whoever knew her will be devastated, like I am."
Francesca, 9, Huddersfield, England
"I will always remember her and God bless her Talent. SJA will never be the same."
Lizzy, 12, Nottingham, England
"I will really miss Elisabeth Sladen because she was such a really good actress."
Emilie, 7, Shropshire, England
"I have been watching Elizabeth Sladen for years and seeing the news was such a shock. We are all going to miss you."
Inayah, 10, London, England
"Elisabeth Sladen was an amazing actress who inspired millions and will never be forgotten. She will be missed loads."
Beccy, 10, Berkshire, England
"Elisabeth was one of the greatest actresses of all time and she will be missed incredibly. None of her fans knew her as Elisabeth - she was always known as Sarah Jane. When I found out, I started crying. It was a drastic loss and we will never forget how wonderful Elisabeth Sladen really was. I don't know if I will get over this. You will be missed."
Maia, 10, Merseyside, England
"She was a great actress and is going to be missed greatly, but she can never ever be replaced. She was one of a kind. I love The Sarah Jane Adventures and it's going to be sad that there are not going to be any more because no one can play Sarah Jane like Elisabeth did. It's very upsetting, but we all know she lived a good life and had good friends. All we need to think of is that she is not in pain anymore, which is a good thing."
Sophie, 12, Cornwall, England
"I couldn't believe it when I heard the terrible news and I still haven't come to grips with it. You were the best alien hunter ever. R.I.P Lis. We love you."
Selena, 14, London, England
"Elisabeth was very good at acting and we will miss her always. No-one is better than Elisabeth. I used to watch The Sarah Jane Adventures and Doctor Who every time it was on. We will miss you badly."
Samantha, 10, Merseyside, England
"I will miss Elisabeth Sladen greatly. CBBC will not be the same without her. R.I.P Lis."
Lydia, 12, Shropshire, England
"I was so sad when I heard that she died. My favourite memory of Sarah Jane was when she always used her sonic lipstick. She always stood back when she used it. R.I.P Sarah Jane."
Nazifa, 11, London, England
"Elisabeth was an amazing actress and will be truly missed by all her fans. We all hope The Sarah Jane Adventures will carry on in her memory."
Katie, 13, Nottingham, England
"I remember her being a great character. Inspirational actress."
Samuel, 12, Kent, England
"Elisabeth was a great actress and I will really miss her on SJA and on Doctor Who!"
Anna, 14, London, England
"When I heard Elisabeth Sladen died from cancer, I actually cried. She was the best and no one will forget her."
Luis, 13, Manchester, England
"She just seemed like someone who was going to be there forever, I just can't believe she has died. RIP Elizabeth."
Rory, 10, Essex, England
"I loved Sarah Jane, and when I heard the news that she died it was really awful. I couldn't believe it. Sarah Jane was a really good actress and should be remembered in history forever."
Amani, 12, London, England
"I will really miss Sarah Jane."
John, 8, N. Ireland
"She will always be in my heart."
Grace, 11, London, England
"She was the best alien destroyer ever. We all miss you Elisabeth."
Hafsah, 10, England
"My dad said he used to watch Elisabeth when she was on Doctor Who. I have watched every episode of the Sarah Jane Adventures and me and all my family are upset about the news."
Rosie, 11, Worcestershire, England
"She was a great actress and she deserves to be remembered."
Annabelle, 10, Leeds, England
"I have wached every single Sarah Jane Adventures and NO-ONE will be able to ever replace her."
Adrianna, 11, London, England
"A tragic loss. Elisabeth was a star and will be dearly missed. When I heard the news I was in shock that it was true. I hope no one replaces Lis as Sarah Jane because Lis is the real Sarah. I also think that there should be a one-off TV show to tell people about her life as some people do not know that she was a star. R.I.P Elizabeth Sladen."
Shaun, 11, Kent, England
"She was such a brilliant character, with such warmness and invincibility that it almost seems impossible that she has died."
Mobbsey, 13, Cornwall, England
"Maybe in shows she might save the world for fake, but when she's in heaven, she saves the whole universe. So I will never forget her."
Chanruu, 10, London, England
"Elisabeth will always live on in my heart. She was, and still is, my idol. I hope to grow up like her."
Marine, 11, Berkshire, England
"It was so sad when I heard that she died from cancer. Nobody could replace her in the Sarah Jane Adventures.
Lilly, 13, Oxfordshire, England
"I expect everyone who knew her will be extremely upset, so am I. My memories of Sarah Jane is with the Shansheeth and Elisabeth got to meet Matt Smith as the Doctor."
Poppy, 9, Halesowen
"She was the BEST monster hunter EVER. :( "
Nyah, 10, Plymouth
"Elisabeth was an amazing actress- she always put a smile on my face."
Courtney, 13, Killamarsh
"R.I.P Elisabeth Sladen we wont forget you ever! You've taken us on lots of adventures and fun so thanks!"
Breianne, 10, Milton Keynes
"I loved Elisabeth. She was my favourite actress. My sister told me she had passed away and I was devastated. No one in the world could ever replace her. She is the one and only alien fighter!"
Leah, 10, Sunderland, England
"I am going to miss her so much and I'll never forget her. The Sarah Jane Adventures was an awesome series, and it will never be the same without Elisabeth."
Josie, 10, Essex, England
"I loved Elisabeth in the role of Sarah Jane. She was my favourite actress and I am going to miss watching the show. This one of the saddest days of my life."
Connor, 11, Devon, England
"Will miss watching her on telly. RIP Elizabeth, you were loved by many."
Bethan, 13, Derbyshire, England
"We will miss Elisabeth very much. She was so talented!"
Nicole and Bibi, 9 and 8, Devon, England
"I was really upset when I found out that Elisabeth had died. I am sad in two ways, 1. No more Sarah Jane Adventures and 2. My favourite actor has gone. RIP Elisabeth."
Chelsea, 10, Plymouth, England
"I can't believe Elisabeth has died. No one will ever be as good an actress as her. Elisabeth, we miss you so so much, you were so talented and pretty."
Abigail, 9, Gloucestershire, England
"Oh no! When I heard about it at 8:30 I could not stop going on about it to my mum! No one can replace poor Elisabeth."
Matthew, 9, Liverpool, England
"Elisabeth was a great actress in the Sarah Jane Adventures and Doctor Who. Me and my dad were big fans of both so we will really miss her."
Hannah, 12, Warwickshire, England
"I can't believe Elisabeth has died. She will probably be remembered as one of the greatest actresses ever. She will definitely be that in my house."
Chris, 11, Kent, England
"I am very sad about the news, even my mum was crying. We will miss her."
Darcy, 10, Derbyshire, England
"I am really sad, she was one of the best actors I knew and I will never forget her!!"
Sarosh, 10, New York, USA
"I will miss Elisabeth loads. I needed the biggest hug when I heard the news. I hope you are well in heaven Elisabeth."
Ellie, 10, Manchester, England
"No one can EVER replace Sarah Jane... I will miss watching her. R.I.P."
Naomi, 9, Warwickshire, England
"Watching The Sarah Jane Adventures won't be the same now that Elisabeth has died. I really liked the episode when she met Jo Grant and she saw The Doctor once again. I have emailed lots of friends the sad news already!"
Jessica, 9, London, England
"It is such sad news. I really enjoyed watching the Sarah Jane Adventures and also I liked watching her in Doctor Who. I am very sorry for her family."
Jade, 12, London, England
"I am sad to hear that Elisabeth has passed away. She was very good at destroying the aliens, it was a show that was like no other! I do not think they should make a new one as it would not be the same."
Ambah, 11, London, England
"Me and my Dad really enjoyed watching Sarah Jane together (especially Bubble Shock!) and my dad watched her when he was little too! We will miss her very much."
Elodie, 6, Manchester, England
"She was amazing, never giving up, and that's why I loved her."
Freya, 11, York, England
"I am really upset about Sarah Jane, I've watched her for ages and will really miss the show."
Alina, 11, London, England
"Elisabeth was just brilliant, she will never be forgotten. She inspired me from the age of 7."
Jessica, 11, Exeter, England
"RIP Elisabeth you will be missed."
Matthew, 10, Liverpool, England
"She was brilliant, I will miss the show."
Nathaniel, 10, Buckinghamshire, England
"Elisabeth was a good actor and it will be sad not to see new shows."
Lara, 10, UK
"I wish this never happened to Elisabeth. No one can ever replace her."
Shannon, 11, Somerset, England
"I will miss her so much. I loved her show and how she defeated the aliens."
Millie, 7, Bristol, England
"Me and my dad would always record Doctor Who and The Sarah Jane Adventures. We loved watching it together and I will really miss the show. R.I.P Elizabeth, thinking of you and your family and friends."
Lucy, 12, UK
"I will really miss Elisabeth. She was so good at acting as Sarah Jane and no one will be better than her. I hope she rests in peace."
Mai, 12, London, England
"Elisabeth was inspiring, she showed me never to give up and I will miss her."
Holly, 11, Surrey, England
"I love Sarah Jane Smith and I don't think the Doctor will ever get another companion like her. We all love you Elisabeth."
Jade, 12, Manchester, England
"It's so sad that she's died. She was a really good actress, nobody can replace her."
Anna, 11, Carmarthenshire, Wales
"I will really miss her, she was my idol."
Thomas, 9, Bedfordshire, England
"It was a real shock to me when I found out last night."
Lydia, 12, Leicester, England
"Can't believe it... who will defeat the Gorgans now?! Will miss you."
Kai, 7, Newcastle upon Tyne, England
"I am going to miss Elisabeth Sladen because she was a great actress."
Heather, 11, Hampshire, England
"I cannot believe she has died. Everyone loved watching her on TV, it is so sad she has gone. But she'll always be in our hearts."
Selan, 11, London, England
"I will miss Elisabeth Sladen. She was my favourite actress on CBBC."
Reuben, 8, Norwich, England
"I will miss watching the Sarah Jane Adventures! She was my favourite actress and I will miss her."
Danielle, 11, Lancashire, England
"What really sad news. It was a BIG shock. She will be sadly missed both from The Sarah Jane Adventure series and her guest appearances in Doctor Who."
Abbie, 10, Dundee, Scotland
"You were a great actor, you made us laugh. We will all miss you."
Reece, 10, Leicestershire, England
"I'm going to really miss Elisabeth Sladen - she was funny, confident, dramatic and by the looks of things, she gets along with all her work friends."
Isobel, 10, Cambridge, England
"My big sister Rebecca and I loved watching Doctor Who and Sarah Jane Adventures, as well as my brother. We will miss Sarah Jane Adventures."
Raiona, 9, UK
"A very talented lady- she will be missed."
Zainab, 15, Leicester, England
"She was great and I can't believe that she is actually gone! I cried when I found out."
Ahlam, 10, London, England
"I'm really sad that Elisabeth died because she's the best."
Lauren, 5, London, England
"She was so energetic! I will always miss her."
Betsy, 9, Newcastle, England
"So sorry to hear of the loss of Sarah Jane, I will miss her very much."
Harvey, 13, Charente, France
"It's so sad. She was a really talented lady."
Jessica and Aggie, 11, Poole, England
"It is so upsetting about Elisabeth. I didn't even realise she was 60 odd, she looked great! She was amazing at playing Sarah Jane. RIP Elisabeth."
Molly, 12, Cheshire, England
"Me and my brother loved the Sarah Jane Adventures and Elizabeth was the BEST! Thanks for being my favourite actress ever. I know the cast will miss her, she was awesome. We will all miss her."
Lotti, 11, Hertfordshire, England
"I was very shocked when I saw she had gone and I feel sorry for her family."
Emily, 11, London, England
"She was a very good actor and I will miss her loads. When I heard this I cried."
Rebecca, 12, West Midlands, England
"I am really sad because I loved watching the adventures she had. No one will ever replace her."
Ellie, 9, Surrey, England
"I am devastated to hear about the death of Elisabeth. When I was told my heart fell. The universe would never be the same without Sarah Jane. My favourite memory was everything! I will really miss her."
Cameron, 9, Co. Durham, England
"So very sad and shocked to hear about Elisabeth. She was one of the best companions by far and warmed the hearts of thousands of people. I had watched The Sarah Jane Adventures since it first aired and will remember Elisabeth fondly. R.I.P."
Em, 13, London, England
"I will miss Elisabeth very much, I love Sarah Jane and hope CBBC will continue to put the programme on. R.I.P"
Courtney, 11, Leicestershire, England
"Sarah Jane was the best!"
Emily, 5, Sussex, England
"I was really sad when I saw the news in the newspaper. My thoughts go to all of her family and friends and everyone who supported her while she was ill. She inspired me, and when I was sad I would hop onto the CBBC website and watch all the episodes of The Sarah Jane Adventures. R.I.P Elisabeth. No one will forget you, ever."
Izabella, 11, Chesterfield, England
"I think Sarah Jane was a really good alien hunter and if the world had an alien invasion, Elisabeth would be the one to save us. I will miss Elisabeth loads and loads."
Morgan, 9, Isle of Wight, England
"I'm going to miss Sarah Jane so much. My memory of her was when she developed a gang and created a team. It was like her little family and was so adorable!"
Di Di, 13, London, England
"I think that Elisabeth Sladen was a great actress on Dr Who and The Sarah Jane Adventures and we will miss her."
Thomas, 10, England
"I will never forget Elisabeth."
Becky, 10, London, England
"She was an amazing actress! I was so shocked as I would have never guessed that she was ill. She was really strong. I can't quite get my head around it! So R.I.P Elisabeth, we will surely miss you."
Alice, 13, Canterbury, England
"I never knew that Elisabeth had cancer. I will miss her lots!"
Brogan, 11, Blackpool, England
"She was so cool in The Sarah Jane Adventures. I will miss her so much!"
Martha, 10, Yorkshire, England
"I loved watching Sarah Jane. She was an amazing and wonderful actress. I will miss her dearly."
Amy, 11, Somerset, England
"I'm so upset that Elisabeth has died. I'm sure she has been an inspiration to millions of children and adults and we are all going to miss her. She must have persuaded thousands of children to become actors or even write a story about Sarah Jane. R.I.P Elisabeth and thank you!"
Alfie, 10, Cambridgeshire, England
"Elisabeth was great at being Sarah Jane and the team couldn't have got a better actress. I wanted there to be another series of The Sarah Jane Adventures and I now hope they don't make another series without her, because it won't be the same."
Rachel, 12, Stockton-on-Tees, England
"She was a brilliant actress and NO ONE will ever forget her. I'll miss you a lot!"
Zainab, 10, London, England
"We will all miss her as she was a great actress. I was really hoping that there would be another series, but she played her role really well that and I think that she would be irreplaceable."
Sonaili, 12, London, England
"Elisabeth was my fave character in The Sarah Jane Adventures and we will all miss her."
Sheryl, 9, London, England
"I will miss watching The Sarah Jane Adventures because she was a brilliant actress!"
Hannah, 11, Blackpool, England
"I loved watching Sarah Jane, she was great. CBBC will never be the same."
Joe, 14, Essex, England
"It's shocking news. I couldn't believe it. She will be missed!"
Vinny, 12, Somerset, England
"'I saw amazing things, out there in space, but there is strangeness to be found, wherever you turn. Life on Earth can be an adventure too. You just need to know where to look!' - Sarah Jane Smith.
Elisabeth Sladen, 1948-2011. You'll never be forgotten."
Lilly, 11, London, England
"I'm upset that Elisabeth died, but she was a great actress on both Doctor Who and The Sarah Jane Adventures."
Daisie, 11, Norfolk, England
"Elisabeth Sladen, you were one of the best actresses in the world. We will all miss you so much. R.I.P Elizabeth, the world will never be the same without you."
Robyn, 13, Nottingham, England
"It's really sad for this to happen. She was the best actress on CBBC and I loved her in The Sarah Jane Adventures."
Reno, 9, Worcestershire, England
"I loved The Sarah Jane Adventures. I remember when she went back in time and saved the planet! I will miss her."
Joe, 14, Essex, England
"Elisabeth was brilliant. She will never be forgotten! She was an amazing actress. R.I.P."
Lucy, 11, Newcastle, England
"I will really miss her as she was a GREAT actress on Doctor Who and of course, The Sarah Jane Adventures."
Maria, 11, Zurich, Switzerland
"There's never going to be another Sarah Jane like Elisabeth."
Kirby, 13, Yorkshire, England
"I'll miss her, but will always watch it and never forget her!"
Savannah, 9, Liverpool, England
"I'm sad to hear this news. She was only 63 and was such a great actress."
Michael, 9, Buckinghamshire, England
"You were a good actress and I bet that you're in heaven watching Sarah Jane or Doctor Who. R.I.P."
Rauf, 13, London, England
"Elisabeth was amazing. I got into Doctor Who through watching her in SJA. I am very sad about this and bet loads of other people will be too."
William, 10, Scotland
"Elisabeth, you will be in my heart forever and ever. I loved watching her on TV and I hope she is now in heaven. R.I.P."
Daniel, 10, Hertfordshire, England
"I really love The Sarah Jane Adventures. It will be very sad with her gone. I will always remember her."
Ruth, 11, Devon, England
"I am so sad that Elisabeth Sladen has died. She was such a lovely person. I loved watching the SJA with my mum, who is really upset too."
Katie, 11, Cambridge, England
"She was a really young-looking lady and she was so pretty. l loved getting up and watching The Sarah Jane Adventures because she was so great in it. I will never forget you Elisabeth in my whole life time."
Rachel, 9, Scotland
"Elisabeth Sladen is one of my favourite actresses, and now when I watch The Sarah Jane Adventures it just won't be the same knowing that she has passed away. I'm really going to miss her. She was such an amazing actress."
Veronica, 12, Surrey, England
"I will miss watching The Sarah Jane Adventures. I liked watching it. Who's going to fight aliens now? The show was funny and I will remember her in it forever."
Caitlyn, 9, Wigan, England
"We were really sad to hear the news. All of the family loved the programme. She was very good on it."
George, 11, Kent, England
"I'm very sad about the news, but she will be remembered for years and years. She will be forever in our hearts."
Anna, 13, Barcelona, Spain
"Me and my whole family are devastated. We all loved watching her on Doctor Who and The Sarah Jane Adventures."
Caitlin, 11, Cambridgeshire, England
"Elisabeth, you have inspired us all. Thank you for all the fantastic acting you have performed. You were a truly outstanding actress. R.I.P."
Shan, 12, Barnsley, England
"I never thought she'd die so soon. I loved her acting and watching The Sarah Jane Adventures will never be the same again."
Yinka, 12, Reading, England
"Elisabeth was the best actress ever. She didn't deserve to die this quickly. 63 is nothing. Nobody will be able to replace her because she was the best. I loved her humour in The Sarah Jane Adventures."
Destiny, 10, Coventry, England
"I can't believe that she has passed away. I am completely heartbroken."
Grace, 10, Colchester, England
"I will miss Sarah Jane for all the touching things she said on television which made you think and feel great. I would have loved to work with her, because in my opinion she was the best actress on television to this day."
Freya, 11, Oxford, England
"I'm so sad to hear that Elisabeth has died. She was an amazing actress and a beautiful lady too. I really admired her as I want to be an actress and hope that my career will be half as good as hers. I send all my love to Elisabeth. Rest in piece."
Aimee, 12, Scotland
"R.I.P Elisabeth. We will all miss you."
Rosie, 11, Southampton, England
"Elisabeth is an amazing actress and The Sarah Jane Adventures will never ever be the same without her. She will be missed hugely by thousands, including me. She was brilliant."
Hannah, 10, Edinburgh
"I am sad that Elisabeth Sladen has died. I have posters of Sarah Jane and The Doctor, and have enjoyed The Sarah Jane Adventures."
Izzy, 9, Wales
"Elisabeth will be missed by many for her fantastic talents and her friendly personality. No one can replace her. R.I.P."
Beth, 11, Suffolk, England
"I'll miss Elisabeth as she was the most amazing and clever actress on the whole of the CBBC channel."
Sarah, 10, Gloucestershire, England
"Elisabeth was a great actress and I really enjoyed watching her. I'm going to miss her."
Annabel, 10, Berkshire, England
"She was an excellent actress and it's a shame she was taken before her time."
Emily, 14, Stockton-on-Tees, England
"R.I.P Elisabeth. You were an inspiration to many. In the words of Russell T Davies: "The universe will miss Sarah Jane, the world will miss Lis."
Isabella, 12, England
"We will miss you so much."
Vanessa, 8, Kent, England
"I am a BIG fan of Doctor Who and The Sarah Jane Adventures and I really liked watching her on my TV. I'm really going to miss her and I always wanted to meet her in real life. I'll always remember her as a very very good actress. Me, my mum and dad will all miss you Elisabeth."
Alfie, 11, Brighton, England
"It's very sad to see her leave us and she will always be remembered in our hearts and our minds."
Sam, 10, Middlesbrough, England
"I really liked watching Elisabeth. I'll miss her very much!"
Harrison, 5, Yorkshire, England
"Elisabeth Sladen was a great actress and we all really miss her."
Alice, 7, London, England
"Elisabeth Sladen was really, really lovely and I loved her to bits. So I hope she rests in peace."
Niamh, 7, Yorkshire, England
"Elisabeth Sladen was a great actress. She can never be replaced as every programme was packed with loads of excitement."
Eleanor, 12, England
"I cannot believe she passed away so unexpectedly at such a young age. She was wonderful and I'm sure no one will forget her."
Poppy, 13, Yorkshire, England
"Elisabeth was a brilliant actress and has brought many lovely moments to my life. I will truly miss her."
Laura, 11, Wiltshire, England
"She was one amazing actress who nobody can ever replace. R.I.P Elizabeth Sladen. Everyone will remember you."
Alexandra, 9, Lincolnshire, England
"I am absolutely going to miss her. I'm going to miss her so much. Rest in peace. She was the best!"
Aisha, 13, Eastham, England
"Elisabeth Sladen was such an inspiration to so many people. She will be dearly missed by millions of people all round the World. R.I.P Elisabeth, you'll never be forgotten."
Sophie, 13, Kent, England
"I'm really upset about her passing away, but I think Elisabeth has gone to a nice place. She was a very good actress and will be dearly missed. Even my mum watched The Sarah Jane Adventures, so it was a tragedy for all my family."
Bronte, 10, London, England
"I got up and went downstairs, turned on the TV and saw Newsround was on and when I found out I ran to my dad crying! I have been a big fan of The Sarah Jane adventures since it started!"
Lola, 9, Stockport, England
"I've watched Elisabeth in Doctor Who since I was around four years old. She was one of the best companions ever. Her death is so out of the blue and I can't believe she's gone. R.I.P."
Linfa, 13, Kent, England
"Elisabeth was a really good actor and she is well loved, especially as Sarah Jane Smith. If The Sarah Jane Adventures continues, it wont be the same without her."
Emily, 13, Norfolk, England
"R.I.P Elisabeth Sladen. I can't believe she died yesterday. I will never forget her."
Yazmin, 11, London, England
"She was wonderful and the thought of someone like her going through the pain from cancer is heartbreaking."
Ellie, 12, Lincolnshire, England
"Elisabeth was and always shall be a key element of Doctor Who, and many people will miss her because she was such an amazing actress. I know I will."
Heather, 12, Swindon, England
"I was really upset when I heard the news. Elisabeth was such a good actress and I never knew she had cancer. I just hope she had a good and adventurous life."
Sarah, 11, Buckinghamshire, England
"Wow. This is such a shock. I really do miss her already. When I found out, I felt like crying. All my love and kind regards go to her family. It will never be the same without her."
Bethany, 11, Yorkshire, England
"I am really sad that she has died. She was a brilliant actress and The Sarah Jane Adventures is my favourite programme. My thoughts are with her family and friends."
Joshua, 8, Leicester, England
"Elizabeth and Sarah Jane will be sadly missed. Rest in peace Elizabeth, we love you and will always remember you."
Alex, 9, Wales
"I heard that my favourite actress ever died. It's so sad and I will miss her dearly, as will everyone else in my family. Please rest in peace Elizabeth. You were my all time favourite actress."
Olivia, 12, Sussex, England
"This is such an upsetting time for everybody who watched her and for everybody who knew her. She is a great British actress and will be missed. Elizabeth Sladen RIP."
Emily, 11, Manchester, England
"Elisabeth was a wonderful actress and my personal favourite episode of her show was Lost In Time. Since I heard the awful news, I've watched it again about three times already."
Samantha, 11, Norfolk, England
"Elizabeth was simply the best. I will really miss her."
Matvej, 11, London, England
"Great actor, great personality, great person!"
Lauren, 10, Cornwall, England
"There will never be another person to replace Elizabeth."
Hannah, 9, Cambridgeshire, England
"Elisabeth was such a kind, generous and clever person and will be remembered by millions of people."
Lottie, 10, Reading, England
"We will always remember Elizabeth Sladen. She was a great actress and a great person."
Ethan, 9, Darlington, England
"I'm really really sad that Elizabeth has passed away. She was the best actress in her show. R.I.P Elizabeth."
Kate, 11, London, England
"Everyone is very upset to hear the news. It's a big blow and nobody expected it to happen. R.I.P Elisabeth. We all will miss you!"
Alisha and Jake, 13 & 11, Sunderland, England
"Everyone will miss Elisabeth! Will this be the end of the SJA?"
Katya, 11, Edinburgh, Scotland
"I really love watching The Sarah Jane Adventures and Doctor Who. I will miss her deeply. My mum and Dad will miss her too."
Amy, 13, Wales
"Elisabeth we will all miss you and you will be remembered by people all over the world!"
Vicky, 10, Wiltshire, England
"Elizabeth was such a good actress. She lit up the room when she was on telly. R.I.P Elizabeth Sladen."
Yas, 11, Surrey, England
"I am really upset and will miss her so much because she became a big part of my life and I can't believe she has died. Nothing can compare to her. Goodbye Sarah Jane."
Emily, 13, Derby, England
"I will miss Elisabeth a lot. I was her number one fan."
Fozia, 14, Yorkshire, England
"You were the best. We will miss you Liz."
Holster, 11, Yorkshire, England
"She was an amazing actress and I will miss her loads."
Hollie, 11, Northamptonshire, England
"Elisabeth was a talented person and a fantastic actress. We will really miss seeing her on our television screens."
Charlotte, 7, Kent, England
"I am so sad that Elisabeth has died. I loved the Sarah Jane Adventures. She was so cool and a really great actress."
Hannah, 10, N. Ireland
"It's really sad. I will miss her. I didn't even know that she had cancer. R.I.P. I will always remember you."
Toyin, 10, London, England
"I am really sad about the news. The Sarah Jane Adventures was my favourite programme. I will really miss her."
Fatima, 11, Leicestershire, England
"I was sad when I heard she had died. I enjoyed the TV programs she was in."
Darcie, 7, Swansea, Wales
"I am very sad she has died. I was her biggest fan- I loved her smile."
Emma, 10, Southampton, England
"I'm so upset. I watched the news with Ricky this morning. Thank you for telling us the story and showing us the video of Elisabeth."
Pippa, 11, Dorset, England
"She was a brilliant person and she will be missed by thousands of people."
Coby, 12, Yorkshire, England
"I was really upset about this devastating news. She will be sadly missed by everyone, young and old."
Grace-Emily, 11, Northamptonshire, England
"She was such a wonderful actress and will be missed by all. I know she will be there on the Doctor Who wall of fame."
Edward, 13, Cheshire, England
"Elisabeth was a legend, no one will ever be as good. She will sadly be missed by everyone, R.I.P. Elisabeth Sladen."
Olivia, 10, Grimsby, England
"Elisabeth was a great actress and I will really miss her in the Sarah Jane Adventures."
Ben, 8, London, England
"I am really sad after the news. The Sarah Jane Adventures was my favourite adventure programme. I will really miss her. Nobody could be better than her."
Fatima, 11, Leicestershire, England
"I didn't watch many of the Sarah Jane Adventures, but when I did I was always drawn in by Elisabeth's acting."
Amelia, 12, Oxfordshire, England
"She was amazing, fun and inspirational. I don't think the Sarah Jane Adventures will ever been the same. I want to send my love and condolences to her family, they must be going through a really hard time. R.I.P Elisabeth you will be missed dearly."
Zoe, 12, Worcestershire, England
"I think it is really sad that she has died. All the young kids who watch the Sarah Jane Adventures will be upset when they find out."
Sophie, 13, England
"I am so sad that she has died. She was such a great actor in the 1970s and 1980s and from 2007."
William, 12, Kent, England
"I am gutted that Elisabeth is not with us any more. No one can or will replace her."
Kyle, 11, Swansea, Wales
"Sarah Jane was the best actress and me and my brother and sisters and mum are all very sad today."
Nathan, 9, Isle of Wight, England
"She was a really good actress and very nice. I will really miss her."
Lauren, 7, Somerset, England
"I'm really upset and a bit shocked. I will miss her."
Cora, 9, Leicestershire, England
"I can't believe Elisabeth has passed away. She was a good actress in the Sarah Jane Adventures."
Tiffany, 10, West Lothian, Scotland,
"So sad! Will this mean the Sarah Jane Adventures will be discontinued? Well I certainly won't be watching if another actress joins it. Elisabeth I will miss your talent and most importantly you!"
Matthew, 10, Bradford, England
"I am going to miss her very much. She was amazing and a very good actress! It came as a shock when they said she had died. Everyone loved her and always will. She always brought a smile to my face when I watched SJA."
Eve, 12, Hull, England
"Sarah Jane was the best actress on TV. I will miss her."
Abbie , 12, Plymouth, England
"Sarah Jane is one of my favourite programmes and I am so upset about not being able to see her again."
Meriban, 11, Nottingham, England
"I was upset when I heard what happened. Elisabeth was one of my favourite actresses and I'll miss watching Sarah Jane."
Eleanor, 12, Cambridge, England
"She was a really good actor and me and my brother Minesh will miss her."
Nirusi, 12, London, England
"The Sarah Jane Adventures was one of my favourite shows. I'm going to miss her loads."
Hannah, 11, Suffolk, England
"I am gutted- she was my favourite companion ever. She will be sadly missed."
Paula, 12, Hull, England
"When I heard this news this morning I started crying as she was my role model and my favourite actress of all time. I know that everyone will miss her!"
Ellie, 11, Surrey, England
"I was very shocked when I heard the news and I was upset because I really liked her."
Isobel, 10, Swansea, Wales
"I loved watching Sarah Jane and I don't think any other actress could replace that brilliance. RIP Elisabeth."
Ella, 12, Gloucestershire, England
"No one will be able to replace her, she was the best at what she did."
Ashleigh, 14, Cambridgeshire, England
"She was the best actor ever."
Owen, 12, Doncaster, England
"Sarah Jane was the best hero. I'm upset."
Alfie, 5, West Midlands, England
"I will miss you Elisabeth. Rest in Peace."
James, 9, Bradford, England
"I love watching Sarah Jane, it is very sad and I will really miss her."
Emily 8, Lincolnshire, England
"I am very sad and I'm going to miss the Sarah Jane Adventures! I can't believe the news."
Corin, 11, Newcastle, England
"I am really upset that Elisabeth has died. Sarah Jane is my favourite TV show. She will be missed- R.I.P."
Lexie, 9, London, England
"I was really sad when I heard the news this morning on Newsround. I will remember Elisabeth Sladen with all my heart! "
Lana, 10, Bradford, England
"She was great and I will miss her so much. When my mum told me yesterday it was a big shock but she is in a better place now looking down at us."
Kelly, 14, Cambridgeshire, England
"R.I.P. Elisabeth Sladen. We will always remember you. I hope your family are OK."
Hollie, 11, London, England
"It is sad that she has died. I am going to miss watching her on TV."
Phoebe, 8, Glasgow, Scotland
"This morning when I found out on Newsround I was so upset. Rest in peace Elisabeth."
Ashley, 9, Norwich, England
"When I heard this news, it was heart-breaking. Elisabeth has been in Doctor Who so long and I really loved the Sarah Jane Adventures. It can never be the same without her."
Mia, 10, Peterborough, England
"I am very upset about Elisabeth dying. I had a little cry afterwards. I will miss her."
Roisin, 9, Kent, England
"I was really upset after seeing this! The Sarah Jane Adventures is my favourite show on CBBC."
Anya, 9, Co. Durham, England
"Elisabeth was a great actress- we will miss her."
Grace, 9, Birmingham, England
"We couldn't believe this when we saw it on the news. She was a wonderful woman and a brilliant actress and will be missed by loads of people young and old."
Chloe, 12, Yorkshire, England
"I will miss her, she was a very good actress. I remember when she was in the Tardis and the Doctor said 'Sure you won't forget me?' And she said 'No-one is ever going to forget you'."
Chelsea, 12, Hampshire, England
"Elisabeth was really a good actress and was really funny."
Mollie-Mae, 10, Luton, England
"I've watched every episode of Sarah Jane and Doctor Who, and I will miss her acting greatly. So will many people over the country. She was number one. My memories of her will be her brilliant acting."
Jannine, 13, Stoke on Trent, England
"I was a MASSIVE fan of Doctor Who and Sarah Jane Adventures so to hear that she had died was a huge disappointment to me. I will miss you deeply Elisabeth. My heart is filled with my favourite memories of your adventures that made us all hang off our seats, laugh and cry."
Harley, 12, Kent, England
"I am very sad to hear that she has died. I used to think Sarah Jane was real because she was such a good actress. I will really really miss her."
Rosie, 6, Edinburgh, Scotland
"I was really sad to hear this. I always enjoyed watching you and we will miss you very much. My thoughts are with your family."
Phoebe, 8, Bedfordshire, England
"I was so sad to hear this news last night!! Sarah Jane was one of my favourite characters on CBBC and I loved the Sarah Jane Adventures. R.I.P Elisabeth!! You will be really missed!"
Libby, 12, Kent, England
"I was so sad when my dad told me. I thought he was joking until there was a news flash. I'm still so upset."
Erin, 10, Bedford, England
"I did not expect this coming, she seemed so kind. Will there be any more Sarah Jane Adventures? I guess not but if they are going to continue it will not be the same."
Ellie, 11, Bradford, England
"It is sad because she was the best and she can't be replaced. We are sad in my family and we will all miss her."
Savannah, 8, UK
"I loved Elisabeth Sladen she was an amazing actress and will always be remembered!"
Lauren, 9, Dorset, England
"I will really miss Sarah Jane (Elisabeth). I love watching the Sarah Jane Adventures, it's the best programme on CBBC. Thank you for being the best actress in the world."
Emily, 11, Chester, England
"I was so shocked when I heard this news. Elisabeth was an amazing actress. I loved the Sarah-Jane Adventures and I'm going to miss it. My heart goes out to her family and friends also to Tommy Knight and the rest of the Sarah Jane cast. RIP - now there is no pain."
Kate, 13, Isle of Man
"I am ever so sad, I loved her and was sooo looking forward to the new episode! Elisabeth Sladen R.I.P."
Minigina, 12, Yorkshire, England
"The Sarah Jane Adventures is my favourite show, I am sad."
Jasmine, 11, England
"I am very sad about it. I loved the Sarah Jane Adventures."
Izzy, 8, Peterborough, England
"I enjoyed Sarah Jane."
Greg, 13, Lincolnshire, England
"Elisabeth was my favourite actress ever and she was the best actress on TV. She was also such an amazing lady, I will miss her so much."
James, 10, Dudley, England
"Elisabeth was an AMAZING character and I will miss her LOADS."
Adam, 9, Loughborough, England
"I got told by my brother and I didn't believe it. But when Newsround came on and I saw that it was real I still just could believe it. I am going to miss her acting in SJA."
Joshua, 13, Blackpool, England
"I was so sad when I saw this, I started to cry so much. No one could ever replace Elisabeth in the Sarah Jane Adventures."
Tabatha, 10, Bradford, England
"I feel so sad that she had died. No one can replace her as Sarah Jane Smith. We will always remember you and we will not forget you."
Erica, 12, London, England
"This is so sad to see. Me and my mum watched all her programmes. RIP Elisabeth/ Sarah."
Erin, 10, Vale of Glamorgan, Wales
"I am so upset hearing the news about Elisabeth. She was my favourite actor and I will miss her very much. I will watch the Sarah Jane Adventures as much as I possibly can. I really wish she could come back to us all. I will think of you forever Elisabeth."
Amie, 10, Northamptonshire, England
"I am really sad that Elisabeth has died. I really enjoyed the Sarah Jane Adventures, it was my favourite show. I don't know what is going to happen to her role but no one would be as good as her. We'll miss you Elisabeth."
Rachel, 9, Oldham, England
"I felt really upset when I found out that she has died. She was the best actress I have ever known. I will miss her loads."
Mahwish, 10, Bristol, England
"I am upset and I know everyone's upset. Me and my family will remember her as the "Queen of aliens" and will never forget her. WE'LL MISS YOU ELISABTH!"
Lily, 13, Manchester, England
"I think that she was the best actress ever. She will live on in our hearts and minds for years to come."
Adam, 11, Kent, England
"I was a great fan of her adventures and always will be. I hope that they will never be over."
Lucy, 10, Sunderland, England
"Me and my sisters loved watching Sarah Jane."
Isa, 11, Leeds, England
"I am very sad about Elisabeth's death, she was a great actor. I enjoyed watching the Sarah Jane Adventures, especially the way she reacted to the strange goings on and all the aliens! She was very clever and a happy and funny lady, and I am going to miss her loads."
Tilly, 9, Suffolk, England
"I will really miss her, I loved the Sarah Jane Adventures. We will miss you loads."
Rebecca, 11, Derby, England
"I'll miss you Sarah Jane!"
Sacha, 8, Sussex, England
"I will hugely miss seeing Elisabeth Sladen in the role of Sarah Jane Smith. She was the one who made the show so spectacular for all these years. I will miss her deeply. R.I.P Elisabeth Sladen."
Deepu, 12, London, England
"I am going to sorely miss Elisabeth Sladen. Her acting always struck me because it was amazing and her portrayal of Sarah Jane Smith was impeccable. I have an ancient episode of Doctor Who with her in and now I'm going to cherish it forever!"
Lucy, 11, Stoke-on-Trent, England
"Elisabeth was always exciting to watch and has always been such a great actress."
Rosie, 9, Bedfordshire, England
"It is so upsetting that she has died. I really like her show the Sarah Jane adventures, she was a REALLY GOOD ACTRESS. I was so sorry to hear this on Newsround just now."
Jade, 11, Tyne and Wear, England
"Elisabeth was a brilliant actress who will be missed by many including me!"
Francesca, 9, Warrington, England
"Sarah Jane inspired me and I'm sure lots of other children as well. I am devastated by her death."
Toni, 11, Sussex, England
"I am never going to forget this moment, let Sarah Jane always be in our hearts."
Daniel, 9, London, England
"She was a great actress who also expressed her feelings. Her programmes were really well acted and now something will be missing from CBBC. It is a great loss to the world."
Beatrix, 9, Buckinghamshire, England
"Elisabeth was only 63 which is a young age to die, which makes it even harder to stay strong. This is a message to everyone who is upset about the news and a message to Elisabeth Sladen, RIP Elisabeth."
Cheveay, 11, Cornwall, England
"She was inspiring and fun. I will miss her."
Hannah, 6, Kent, England
"I am completely distraught about Elisabeth Sladen's death. I have many happy memories of her! With my dad (a huge Doctor Who fan) I have watched many episodes she was in. She was a wonderful women and I will never forget her."
Clea, 11, Isle of Wight, England
"My mum and I are really sad. We enjoyed the Sarah Jane Adventures, it was the best programme on CBBC."
George, 9, Hull, England
"Sarah Jane, we hope you are ok in heaven and everyone is comforting you. My family and I are praying for you and your family. No one is going to forget you, no one at all."
Rebecca, 10, Dumfries, Scotland
"I used to watch her with my brothers, we always watched every episode of the Sarah Jane adventures. We will miss her work on CBBC and miss her very badly."
James, 12, Somerset, England
"All of her fans and maybe even the Doctor may feel her presence in the universe fade away."
Nathan, 13, London, England
"I think it is really sad that Elisabeth has died. I'm looking back on the good programmes that I've watched. I loved them all and I loved Sarah Jane Smith."
Olivia, 8, Staffordshire, England
"She was my favourite actor and will be greatly missed."
Jessica, 9, Wirral, England
"R.I.P Elisabeth. I was so looking forward to the next series of the Sarah Jane Adventures and was talking about you and the gang yesterday. You will be missed a lot."
William, 10, Hartlepool, England
"I always love to watch her on TV and I still can not get over the fact that she has died."
Jasmin, 10, Sussex, England
"She was a brilliant actress who was great in all she did. She will not be forgotten. I have watched her in The Sarah Jane Adventures as well as Doctor Who and she was wonderful in all of them."
Harry, 12, London, England
"I will miss Sarah Jane, but we will remember her forever and I will never forget her."
Charlie, 11, Swindon, England
"She was an amazing actress and I love her in The Sarah Jane Adventures! I also think that she had been so brilliant fighting cancer and still looking great. She will always be in my heart. I love Elisabeth."
Lizzie, 13, Devon, England
"Elisabeth was a great actress and we will miss her very much."
Aimee, 10, Wycombe, England
"As a constant viewer of Sarah Jane and Dr. Who, I'm really upset by the passing of Elisabeth Sladen. My thoughts are with Elisabeth's family and friends."
Peter, 9, Derby, England
"It will be sad to not see her again. I hope there will be another Sarah Jane. She will be missed."
Maria, 9, Surrey, England
"I can't believe this has happened. Now The Sarah Jane Adventures won't be any more."
Rory, 11, Wales
"Supreme actress. Loved watching her. R.I.P."
Chelsey, 11, Wiltshire, England
"R.I.P Elisabeth Sladen. The world will never be the same without you."
Connor, 10, Lincoln, England
"Elisabeth was such a star and a very good actress. R.I.P Elisabeth."
Maya, 11, Wales
"Elisabeth was a very good actress. I love watching her programmes and everyone is going to miss her. Everyone really wishes she was still with us. Now and forever, she will always be in our hearts."
Sade, 12, Canterbury, England
"I was shocked to hear this news! She was a very talented woman. The Sarah Jane Adventures will never be the same without her."
Eve, 12, Hull, England
"R.I.P Elisabeth Sladen. I watched all your shows and I'm devastated. I never knew you had cancer and I wish this never happened."
Skye, 10, Southampton, England
"I am so sad. Elisabeth was an amazing actress. I pay my full respect to her. She was only 63 and she could have done so such more! I am going to give a lot of money to the Cancer charity. Good bye Elisabeth Sladen."
Amy, 11, Kettering, England
"I can't believe she has passed away. I love The Sarah Jane Adventures and no one will be able to replace her."
Jessica, 11, Gloucestershire, England
"This is the most devastating news I've ever heard. I really wish that she could have lived for at least another year."
Quinlan, 10, Berkshire, England
"R.I.P Elisabeth - your enthusiasm and talent will be sorely missed."
Jordan, 11, Doncaster, England
"I'm so upset about the news. She was such a good actress was just simply wonderful."
Piers, 11, County Durham, England
"I'll miss Elisabeth because I loved watching her on the TV!"
Juliet, 9, Suffolk, England
"When I first heard the news, I put my hand to my mouth and switched off the sound on my laptop. My best friend and I loved the Sarah Jane Adventures. I will never forget the first time I saw Elisabeth in Sarah Jane - she was amazing."
Charlotte, 11, Northumberland, England
"She was a brilliant actress, and I've watched ALL the episodes of SJA! R.I.P Elisabeth."
Seraphina, 12, Suffolk, England
"It's sad to hear that Elisabeth died. Thank you Elisabeth Sladen."
William, 9, Leicestershire, England
"Elisabeth Sladen was an inspirational woman and an amazing actress."
Lois, 10, Cheshire, England
"I was very upset when I heard about her death. It is so tragic dying, but it's even worse dying of cancer. Although I only moved to England two months ago from Romania, I still enjoyed watching her programme."
Diyana, 10, Newcastle, England
"I am shocked about the news because she always made you feel different feelings. Doctor Who will never be the same."
Mohamed, 10, London, England
"I really was sad when she died and the programme was my favourite programme ever."
Julie, 8, London, England
"I was a huge fan of Elisabeth Sladen and the Sarah Jane Adventures. I'm really sad she is gone."
Caleb, 10, Hertfordshire, England
"The Sarah Jane Adventures has always been a cool show for me but with her gone, what are we meant to watch at 9:00 in the morning? Rest in peace Liz."
Tashan, 11, London, England
"Elisabeth was a great actress. My little sister and I always watched her shows and we thought she was brilliant."
Rebecca, 11, Essex, England
"Rest in peace Elisabeth."
Ronan, 13, Warwickshire, England
"I can't believe she's passed away. I was devastated when one of my friends told me and I will miss her."
Megan, 11, Yorkshire, England
"Elisabeth was a great actress and we are all going to miss her. I was shocked to hear that she had passed away. My mum remembers her from the first Doctor Who and was as shocked as I was to hear the news. R.I.P Elisabeth."
Maisie, 11, Dorset, England
"I think she was great! The Sarah Jane Adventures is my favourite show and she was the best girl on CBBC."
India, 8, Leicester, England
"She was such a powerful actress and she will be sorely missed."
Jack, 11, Somerset, England
"She was a really good Sarah Jane. I can't believe she's gone. She was my favourite."
Tessa, 9, Portsmouth, England
"Elisabeth was awesome. I always watched The Sarah Jane adventures. She was wonderful and it's such a surprise to see her go. R.I.P Elisabeth Sladen."
Tia, 11, Peterborough, England
"Elisabeth was an amazing actress and I'm so sad she died. I was her biggest fan and I've watched all of the Sarah Jane Adventures."
Charlie, 9, Devon, England
"I was really upset to learn of the death of Elizabeth. Sarah Jane was one of my favourite programmes. She will be missed a lot."
Morgan, 8, Burnley, England
"I think it's really sad she passed away."
William, 10, Kent, England
"Elizabeth was always a good actress and a favourite character to everyone. I love how she was able to really engage with her audience. R.I.P Elisabeth. We love you."
Katie, 13, Bedfordshire, England
"Elisabeth was a fantastic actress and I think she will be remembered by millions and also by me."
Marcus, 14, Cheshire, England
"Elisabeth will be remembered for all her talents and friendly spirits."
Ami, 11, Berkshire, England
"She was my favourite actress ever. Rest in peace Elisabeth."
Rebecca, 11, Cambridge, England
"I would just like to say how dearly we are going to miss you Elisabeth. You have inspired thousands of children and quite a few adults, but most of all, you have inspired me to become an actor. You have brought happiness upon this world and put a smile on millions of people's faces and I'm sure they will always remember you as the greatest actress alive."
Harry, 13, Devon, England
"I'll really miss her. She was a great actress and I loved all her programmes."
Hajara, 11, Dorset, England
"I think Elisabeth was a great actress. She was funny and kind. All memories to Elisabeth."
Emily, 9, Liverpool, England
"I'm really sad this happened because no one knew about her illness until the last minute. Her show really inspired me to be imaginative."
Thomas, 10, Bristol, England
"R.I.P Elisabeth Sladen. You were an amazing actress on Doctor Who and the Sarah Jane Adventures!"
Adam, 10, Wales
"I'm really sad about the news. I'm going to miss her."
Thomas, 11, Wales
"We will miss her. R.I.P."
Corey, 12, Berkshire, England
"Elizabeth was amazing. I would watch endless Sarah Jane Adventures and now I'm really upset that there will be no new episodes."
Emma, 10, Barnsley, England
"I was really upset after seeing this! Sarah Jane Adventures was the best programme on TV and I'm going to miss watching and seeing Sarah Jane! Thanks for being my fave actress for ever!"
Gabriella, 11, Sale, England
"No one can replace Elizabeth in Sarah Jane Adventures. It'll be a big blow to the show but I hope Sarah Jane Adventures come back in a new series. We love you Elizabeth!"
Kate, 13, Bedford, England
"It's sad she has died. I remember my dad brought out videos from the attic from when she starred in Doctor Who. I think all the actors/actresses from The Sarah Jane Adventures will miss her loads. Elisabeth was a great character and we will miss her loads."
Evie, 9, Dumfries, Scotland
"I was really upset after I saw this on TV she was such a good actress and I will miss the Sarah Jane Adventures. R.I.P"
Lottie, 9 Solihull, England
"I miss you. You were great at acting. Your show was my favourite - good bye."
Caitlin, 10, Swindon, England
"It's very sad about Elisabeth, as I have watched The Sarah Jane Adventures for a long time. My dad is also upset because he remembers when she was on Doctor Who."
Linsey, 10, Pathhead, Scotland
"I'm so sad that she passed away but my favourite bit was the first ever time she was on Sarah Jane Adventures in the bubble shock factory."
Lucy, 8, London, England
"R.I.P Elisabeth you were great on The Sarah Jane Adventures and on Doctor Who x"
Connor, 10, Newcastle, England
"I am upset because Sarah Jane was the best and no one can replace Elisabeth.......I miss her."
Nuha, 9, Coventry, England
"I am very sad that Elisabeth has died. I will now have nothing to come home to because I always watch SJA."
Matthew, 8, Manchester
"I'm truly upset about the news, It just came out of the blue. She was only 63 years old!"
Thomas, 12, Falkirk, Scotland
"I am so upset and my dad is as well because we watched all The Sarah Jane Adventures and we also like Doctor Who! When I watch Sarah Jane Adventures I get all different feelings sometimes I'm scared or happy or upset like now! I hope her family don't remember her death but her bubbly personality! They can be sad, but remember the great person Elizabeth Sladen was. She is the best!"
Rachel, 10, Essex, England
"Sarah Jane was a great actor. She made scary things look easy to do in the episodes, and that's why I'm so proud of her. Thank you."
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