Alan Rickman passed away last week from pancreatic cancer. Since his passing, a wealth of celebrities–many of whom were his fellow actors–have paid tribute to him via social media.

Best known for his role in the Harry Potter films, Alan Rickman played countless roles throughout his many years as an actor. His death stunned nearly everyone who knew or even knew of him.

Remembering the actor Alan Rickman, in this cartoon by @BentSchwartz: https://t.co/a35CPgUxLO pic.twitter.com/moUFpyl4SM

— The New Yorker (@NewYorker) January 14, 2016

Daniel Radcliffe posted the following tribute to Alan Rickman on his Google Plus page.

“Alan Rickman is undoubtedly one of the greatest actors I will ever work with. He is also, one of the loyalest and most supportive people I’ve ever met in the film industry. He was so encouraging of me both on set and in the years post-Potter. I’m pretty sure he came and saw everything I ever did on stage both in London and New York. He didn’t have to do that. I know other people who’ve been friends with him for much much longer than I have and they all say “if you call Alan, it doesn’t matter where in the world he is or how busy he is with what he’s doing, he’ll get back to you within a day”.

“People create perceptions of actors based on the parts they played so it might surprise some people to learn that contrary to some of the sterner(or downright scary) characters he played, Alan was extremely kind, generous, self-deprecating and funny. And certain things obviously became even funnier when delivered in his unmistakable double-bass.

“As an actor he was one of the first of the adults on Potter to treat me like a peer rather than a child. Working with him at such a formative age was incredibly important and I will carry the lessons he taught me for the rest of my life and career. Film sets and theatre stages are all far poorer for the loss of this great actor and man.”

Emma Watson posted her Alan Rickman tribute to her Facebook page.

She honored him via Twitter as well.

#alanrickman pic.twitter.com/4WXwnoUtM7

— Emma Watson (@EmWatson) January 14, 2016

Countless celebrities shared their memories and tributes of Alan Rickman.

Farewell my friend.Your kindness & generosity ever since we met in LA in 1987 & ever since is incalculable.XX pic.twitter.com/BCUkCxMFj5

— Richard E. Grant (@RichardEGrant) January 14, 2016

pic.twitter.com/Nrwfbvlnp6

— Eddie Izzard (@eddieizzard) January 14, 2016

Such a lovely, kind, generous, funny and brilliant man. Thank you Alan Rickman for that and for so many flawless performances

— mia farrow (@MiaFarrow) January 14, 2016

Hans, The Sheriff of Nottingham, Dr. Lazarus, Harry, Snape. Damn. Alan Rickman will leave a hole in my heart. Fuck Cancer.

— Anna Kendrick (@AnnaKendrick47) January 14, 2016

Jane the Virgin actress Gina Rodriguez shared her thoughts on Alan Rickman’s untimely passing via Instagram.

“They got one talented angel up in heaven. Forever remembered. Forever missed. ?? #alanrickman,” she captioned a photo.

A photo posted by Gina Rodriguez (@hereisgina) on Jan 14, 2016 at 8:05am PST

Alan Rickman’s death made the Oscar nominations pale in comparison for Jamie Lee Curtis.

Oscar noms out. Couldn't care as Alan Rickman is gone & could have done every job on those movies as well, women included. Stunning talent.

— Jamie Lee Curtis (@jamieleecurtis) January 14, 2016

Author Stephen King was stunned by Alan Rickman’s death, too.

So sorry about the passing of Alan Rickman. Too young, too young.

— Stephen King (@StephenKing) January 14, 2016

One can only hope that all these people sharing their sentiments in light of Alan Rickman’s passing, shared their love with the actor while he was alive.

Perhaps his death can serve as a message for all to do just that.