Neil Simon “truly was the king of Broadway comedy”, Elaine Paige said as she paid tribute to the late playwright.
The screenwriter died on Sunday of complications from pneumonia, at the age of 91.
Musical theatre star Paige wrote on Twitter: “RIP #NeilSimon Pulitzer Prize-winning playwright and librettist for Sweet Charity & Promises, Promises as well as writing the book for musical Little Me.
“He truly was the king of #Broadway comedy.”
Actor Josh Gad said Simon “defined and shaped” his career.
“To say that #NeilSimon was one of the primary influences on my life and career would be an understatement,” he tweeted.
“His work, as both a participant and audience, has defined and shaped me on my own journies and carr@eer trajectory.
“RIP to another lost legend.”
Actress Jillian Clare thanked the playwright for “decades of wonderful art”.
She added the hashtag “#dimthelights”.
Actress Rosie Perez said the playwright’s star would “forever shine bright”.
“Ah man. This makes 3- #NeilSimon #ArethaFranklin #JohnMcCain!” she said.
“Thanks for the laughter and heartfelt tears.
“Like the rest, your star will forever shine bright.
“Thx for the hits. #OddCouple -was my favorite! #Rip Condolences to his family.”
Star Wars actor Mark Hamill tweeted: “There’s no more money anyone can pay me that I need.
“There are no awards they can give me that I haven’t won. I have no reason to write another play except that I am alive and I like to do it”-Neil Simon.
“#RIP GIANT of the American Theatre #ThanksForTheLaughs.”
Happy Days star Henry Winkler said: “We lost a giant .. one of the most prolific playwrights in history.
“Thank you Neil for a life changing experience. Rest in peace in your brilliance #neilsimon.”
Actor Danny DeVito wrote on Twitter: “Neil Simon the true Sunshine Boy.
“Happy I got to have fun with him. Peace.”