As the world mourns the loss of "Black Panther" star Chadwick Boseman, many of his co-stars from the Marvel universe and "Avengers" films have been sharing tributes online.
Boseman died Friday at the age of 43 after a 4-year battle with colon cancer, his family said.
"i will miss you, birthday brother. you were always light and love to me. my god," Don Cheadle, who played James Rhodes/War Machine alongside Boseman in three films.
Chris Evans, who played Captain America, said he absolutely devastated.
"Chadwick was special. A true original. He was a deeply committed and constantly curious artist. He had so much amazing work still left to create. I’m endlessly grateful for our friendship. Rest in power, King," Evans wrote.
"All I have to say is the tragedies amassing this year have only been made more profound by the loss of Chadwick Boseman," Mark Ruffalo, who played The Hulk, wrote. "What a man, and what an immense talent. Brother, you were one of the all time greats and your greatness was only beginning. Lord love ya. Rest in power, King."
Actor Chris Pratt commented on Instagram that "this is such devastating news. We're praying for his family. The world has lost an immeasurable talent and a great person."
Chadwick starred as T'Challa/Black Panther in four Marvel films, first appearing in 2016's "Captain America: Civil War." That was followed by "Black Panther," "Avengers: Infinity War" and "Avengers: End Game." A “Black Panther” sequel had been announced, and was one of the studio's most anticipated upcoming films.
Actress Brie Larson, who played Carol Danvers/Captain Marvel, wrote that "Chadwick was someone who radiated power and peace. Who stood for so much more than himself. Who took the time to really see how you were doing and gave words of encouragement when you felt unsure."
Chris Hemsworth, who played Thor, said it was absolutely heartbreaking.
"Gonna miss you mate. Absolutely heartbreaking. One of the kindest most genuine people I’ve met. Sending love and support to all the family xo RIP," Hemsworth posted.
Josh Brolin, who played Thanos in the "Avengers" films, said he was absolutely floored by Boseman's death.
"Such an amazing, beautiful person. RIP Brother," Brolin wrote.
Marvel posted a special tribute as well saying "Our hearts are broken and our thoughts are with Chadwick Boseman’s family. Your legacy will live on forever. Rest In Peace."
Tom Holland, who portrayed Spider-Man in "Avengers: Endgame," posted a heartfelt message on Instagram about the "hero" and "role model." It included a photo of Boseman next to the hospital bed of a little girl.
"Chadwick, you were even more of a hero off screen than on," Holland's post read. "A role model not only to me on set, but to millions of others around the world. You brought joy and happiness to so many and I’m proud to have been able to call you a friend. RIP Chadwick"
Sterling K. Brown, who played N'Jobu in "Black Panther" with Boseman, tweeted "I don’t have words. Rest In Peace, Bruh. Thank you for all you did while you were here. Thank you for being a friend. You are loved. You will be missed. "