Charlie Sheen has led tributes to late British actor Alan Rickman, describing him as a gentleman who "redefined the big screen villain".
On Thursday news broke that the Harry Potter star had passed away at the age of 69 from cancer.
Having won fans of all ages with his diverse roles, from Professor Severus Snape in the wizard franchise to baddie Hans Gruber in Die Hard, he will be sorely missed by many, including actor Charlie.
"We lost a genius today, Alan Rickman. This gentleman redefined the big screen villain, forever. RIP #HansGruber" he wrote on Twitter.
Alan's Harry Potter co-stars James and Oliver Phelps, who played twins Fred and Oliver Weasley, were quick to share their condolences. James wrote: "Shocked & sad to hear Alan Rickman has passed away. One of the nicest actors I've ever met. Thoughts and prayers with his family at this time," while his sibling posted: "Terribly sad news about the passing of Alan Rickman. A funny and engaging person who put a shy young actor at ease when I was on HP."
Harry Potter author J.K. Rowling also tweeted, sharing a heartfelt message with her followers. "There are no words to express how shocked and devastated I am to hear of Alan Rickman's death. He was a magnificent actor & a wonderful man," she wrote.
British actor and TV personality Stephen Fry described his friend's death as "desperately sad news", while Alan's Sweeney Todd: The Demon Barber of Fleet Street co-star Jamie Campbell Bower recalled working with the star on the film, marking his first big screen feature.
"Devastated to hear about the passing of Alan Rickman. I had the pleasure of working with him on my first movie. A true legend and gentleman," Jamie posted.
Richard E. Grant shared: "Farewell my friend.Your kindness & generosity ever since we met in LA in 1987 & ever since (sic)".Charlie Sheen leads tributes to Alan Rickman