Actors Steve Martin, Albert Brooks and Dick Van Dyke are among the stars who have paid tribute to comedian Jonathan Winters following his death on Thursday (11Apr13). Winters passed away of natural causes in Montecito, California at the age of 87, and now dozens of celebrities have taken to Twitter.com to pay their final respects. In one post, Martin writes: "Goodbye, Jonathan Winters. You were not just one of the greats, but one of the great greats," and Brooks adds, "R.I.P Jonathan Winters. Beyond funny, He invented a new category of comedic genius." Van Dyke tweets, "The first time I saw Jonathan Winters perform, I thought I might as well quit the business. Because, I could never be as brilliant," and Tom Arnold adds, "RIP Jonathon Winters. The funniest man in the world. Look it up young people." Rosie O'Donnell, who shared the screen with Winters in The Flintstones, continues, "jonathan winters - true comic genius - i was lucky to work with him on the flintstones movie - a wonderful man - rip," and filmmaker Adam Shankman, who choreographed the movie, adds, "RIP 1 of the great funny man legends of all time jonathanwinters. I will always cherish how u made me laugh on set & off. We will miss u!" A number of other celebrities have added their tributes as well, among them John Stamos, Steve Carell, Eric Stonestreet and Roseanne Barr.