29. Jerry Seinfeld
"People want me to spend a lot of time wastefully so that I can then waste their time," Seinfeld said in a recent New York Times profile. The post-Seinfeld Seinfeld has turned wasting time into quite the art form. But he's recently been pretty active-for-Jerry: last year, he did his first shows in New York since the Nineties (playing one night in each of his hometown's five boroughs), as well as the series of web shorts Comedians In Cars Getting Coffee, where he drives classic cars and talks shop with pals like Ricky Gervais and Larry David. He may never make another era-defining TV show but in the world of comedians he's still the Gandalf of joke telling. "Whereas most comedians are lazy bastards, he's the ultimate craftsman," Sarah Silverman told The Times.