Fisher died Tuesday at age 60. She had been taken to the hospital on Friday after going into cardiac arrest on a flight from London to Los Angeles.
Her mother, actress Debbie Reynolds, thanked fans for their support.
Mark Hamill, who plays Luke Skywalker in the Star Wars films, tweeted that there were no words to describe how he felt about the news.
no words #Devastated pic.twitter.com/R9Xo7IBKmh
— Mark Hamill (@HamillHimself) December 27, 2016
Later in the day, he sent out a longer reflection on his friend's passing.
#AFewWords pic.twitter.com/rOKiPr7gP9
— Mark Hamill (@HamillHimself) December 28, 2016
Harrison Ford, who plays Han Solo, said in a statement to ABC News that she is greatly missed.
"Carrie was one-of-a-kind ... brilliant, original. Funny and emotionally fearless. She lived her life, bravely ... My thoughts are with her daughter Billie, her mother Debbie, her brother Todd, and her many friends. We will all miss her."
In a statement, Star Wars creator George Lucas praised Fisher.
"Carrie and I have been friends most of our adult lives. She was extremely smart; a talented actress, writer and comedienne with a very colorful personality that everyone loved. In Star Wars she was our great and powerful princess - feisty, wise and full of hope in a role that was more difficult than most people might think. My heart and prayers are with Billie, Debbie and all Carrie's family, friends and fans. She will be missed by all."
More actors and members of the Star Wars family also paid tribute.
There are no words for this loss. Carrie was the brightest light in every room she entered. I will miss her dearly. pic.twitter.com/GgIeYGeMt9
— Peter Mayhew (@TheWookieeRoars) December 27, 2016
I'm deeply saddened at the news of Carrie's passing. She was a dear friend, whom I greatly respected and admired. The force is dark today!
— Billy Dee Williams (@realbdw) December 27, 2016
We've lost our Princess. pic.twitter.com/N9xMYe6jLT
— Gwendoline Christie (@lovegwendoline) December 27, 2016
"Sweet Carrie."
The light in The Galaxy is dimmed by the loss of our Princess Leia. May The Force Be With Her!! RIP
— Samuel L. Jackson (@SamuelLJackson) December 27, 2016
I am extremely sad to learn of Carrie's passing. She was wonderful to work with. Condolences to her friends, family & fans around the world. pic.twitter.com/DGRYQYPZgO
— DARTH VADER (@isDARTHVADER) December 27, 2016
Princess Leia, @carrieffisher now one with the Force. Your kindness & sharp wit will be missed. #RIP PS: Thanks for the milk & cookies. xx pic.twitter.com/sFSy9UmvYY
— Warwick Davis (@WarwickADavis) December 27, 2016
The light in The Galaxy is dimmed by the loss of our Princess Leia. May The Force Be With Her!! RIP
— Samuel L. Jackson (@SamuelLJackson) December 27, 2016
"She was Princess Leia to the world but a special friend to all of us. We will miss her dearly." -Kathleen Kennedy https://t.co/E96OuqnFQL pic.twitter.com/lr0rm0sRxc
— Star Wars (@starwars) December 27, 2016
— Bad Robot (@bad_robot) December 27, 2016
Beyond the Star Wars universe, other notable figures expressed their grief and shared their condolences.
Saddest tweets to tweet. Mommy is gone. I love you @carrieffisher
— Carrie Fisher's Dog (@Gary_TheDog) December 27, 2016
#RIPCarrie aka Princess Leia. You were an inspiration to many who look to the stars. https://t.co/3LKNSYl1QX
— Scott Kelly (@StationCDRKelly) December 27, 2016
"Our beautiful brilliant funny wise kind and generous Blues Sister -so ironic - Xmas was Carrie's favorite thing next to babies."
— Dan Aykroyd (@dan_aykroyd) December 27, 2016
Thank you Ms. Fisher, for opening up a world of possibilities, strength and hope for all little girls. Rest. pic.twitter.com/LTpZsGeCR8
— Alyssa Milano (@Alyssa_Milano) December 27, 2016
Carrie Fisher didn't make it. I am so terribly sorry, and send my sincere condolences to her family, friends and fans all around the world.
— Bette Midler (@BetteMidler) December 27, 2016
Carrie was brilliant, funny and talented. Sending huge love be to her mom, her daughter, Billie and her many friends
— mia farrow (@MiaFarrow) December 27, 2016
We've lost a true gem with Carrie Fisher's passing. Her humor, talent and brutal honesty were gifts to the world. Her voice will be missed.
— Larry King (@kingsthings) December 27, 2016
I'm deeply saddened to learn of the death of Carrie Fisher. I will miss our banterings. A wonderful talent & light has been extinguished.
— William Shatner (@WilliamShatner) December 27, 2016
.@CarriefFisher was a brilliant writer, actor, and friend. She was so much fun. I can't believe she's gone. https://t.co/wpxGvBWA0b
— Ellen DeGeneres (@TheEllenShow) December 27, 2016
Carrie Fisher has passed, she was funnier&smarter than anyone had the right to be. Sail On Silver Girl. Condolences Debbie & Billie
— Whoopi Goldberg (@WhoopiGoldberg) December 27, 2016
R.I.P.
Carrie fisher - great wit - great friend / one of the brightest lights has gone out . Deep condolences to Billie and Debbie pic.twitter.com/NoUQt1mq5u
— Courtney Love Cobain (@Courtney) December 27, 2016
My heart goes out to Debbie Reynolds on the death of Carrie her talented daughter. There have been too many deaths this year
— Joan Collins (@Joancollinsdbe) December 27, 2016
Carrie Fisher. Cannot believe that you're 'gone'. Funny funny and then some. 💔💔XXX pic.twitter.com/DV6GQC1lcx
— Richard E. Grant (@RichardEGrant) December 27, 2016
Such a sad day for her family, friends and millions of fans. Carrie Fisher is deeply missed.
— Jon Favreau (@Jon_Favreau) December 27, 2016
Carrie Fisher "Ugh,will everybody stop all of this?"
— Kathy Griffin (@kathygriffin) December 27, 2016
Us "no, let us gush, you just have to take it"
thoughts and prayers to Carrie Fisher's family
— Ryan Seacrest (@RyanSeacrest) December 27, 2016
Carrie Fisher was smart, funny, talented, surprising, and always a hell of a fun time to be around. Family Guy will miss her immensely.
— Seth MacFarlane (@SethMacFarlane) December 27, 2016
Carrie Fisher had a brilliant mind. I will miss her insight her wit and her beautiful voice.
— Rob Reiner (@robreiner) December 27, 2016
R.I.P. Carrie Fisher. A brilliantly funny, talented woman. We will miss your humor now more than ever.
— Albert Brooks (@AlbertBrooks) December 27, 2016
Hail Hail! A genius has vacated this realm-RIP Carrie Fisher.
— Roseanne Barr (@therealroseanne) December 27, 2016
"There is no room for demons, when you're already self-possessed." -Carrie Fisher
— Uzo Aduba (@UzoAduba) December 27, 2016
If I heard Carrie Fisher was going to make an appearance I wanted to see it. U know ur special when Meryl Streep plays YOU in a movie. RIP.
— billy eichner (@billyeichner) December 27, 2016
Numb. Unbelievable that such a bright funny loving spark could be extinguished. @carrieffisher you will be missed. I wish you peace.
— graham norton (@grahnort) December 27, 2016
She was my first crush. Part of our collective childhood. She was gorgeous bold feisty & brilliant.... Rest In Peace Carrie Fisher. pic.twitter.com/x9yVuAC6H9
— Sean Maguire (@sean_m_maguire) December 27, 2016
I met Carrie Fisher at a premiere once. She was kind and gracious, had her daughter with her.
— Mara Wilson (@MaraWilson) December 27, 2016
R.I.P. Carrie Fisher. Seeing her again on talk shows was such a thrill. So hilarious & fearless when she was being herself.
— Kumail Nanjiani (@kumailn) December 27, 2016
2016 is killing me. So sad in one week losing two greats. First George Michael now Carrie fisher. So sad. I just can't 😭😭😭! Rip both of you
— AJ McLean (@skulleeroz) December 27, 2016
So so sad to hear about Carrie Fisher.
— Grant Imahara (@grantimahara) December 27, 2016
Thank you Carrie Fisher for my childhood.
— Joseph Kahn (@JosephKahn) December 27, 2016
Carrie Fisher. RIP. What a talent. What a year. pic.twitter.com/yEFfv2GN6K
— Zach Braff (@zachbraff) December 27, 2016
Carrie Fisher spoke openly about her struggles w mental health. To me she was a hero - not only in the stars - but here on Earth as well. 💔
— Hannah Hart (@harto) December 27, 2016
RIP
— Ryan Adams (@TheRyanAdams) December 27, 2016
Carrie Fisher
May the force be with you always
... pic.twitter.com/mOx3RwFl6e
Thoughts & prayers for #CarrieFisher 's friends & family. We've lost another icon. Hoping 2017 will be a better year for everyone.
— Adina Porter (@AdinaPorter) December 27, 2016
We just lost a great ally for mental health and addiction. Be strong, be as strong as she'd want you to be. Rest in paradise @carrieffisher pic.twitter.com/vxDJkVag06
— Margaret Cho (@margaretcho) December 27, 2016
She was the brightest, funniest, bravest, kindest, cleverest and sweetest person I ever knew. A crushing blow to lose @carrieffisher
— Stephen Fry (@stephenfry) December 27, 2016
I'm sitting in stunned silence learning of the death of #CarrieFisher. In what has been a particularly sad year this may be the hardest. RIP
— Josh Gad (@joshgad) December 27, 2016
#CarrieFisher was so witty and provocative and unrelentingly interesting. Goddamn, I loved her. Everyone did.
— Elizabeth Banks (@ElizabethBanks) December 27, 2016
Not Carrie Fisher. Just. Not. Carrie Fisher.
— Diane Warren (@Diane_Warren) December 27, 2016
Carrie Fisher dedicated her platform to mental health awareness & female empowerment. She is a reason + reminder to keep up your fight. RIP
— h (@halsey) December 27, 2016
PHOTOS: Carrie Fisher through the years
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