Other comedians receiving the lifetime achievement award include both Letterman and Leno, along with George Carlin, Whoopi Goldberg, Bob Newhart, Carol Burnett, Bill Murray and Dave Chappelle.

Other comedians who have received the lifetime achievement award include both Letterman and Leno, along with George Carlin, Whoopi Goldberg, Bob Newhart, Carol Burnett, Bill Murray and Dave Chappelle.

On a night when half a dozen people made jokes about this being the last-ever Mark Twain Prize, Conan O'Brien made sure the ceremony at the John F. Kennedy Center for the Performing Arts ended on a hi ...

Other comedians receiving the lifetime achievement award include both Letterman and Leno, along with George Carlin, Whoopi Goldberg, Bob Newhart, Carol Burnett Bill Murray and Dave Chappelle.

Other comedians receiving the lifetime achievement award include both Letterman and Leno, along with George Carlin, Whoopi Goldberg, Bob Newhart, Carol Burnett, Bill Murray and Dave Chappelle.

“From his iconic HBO specials with Robin Williams, George Carlin, Robert Klein ... names Callner worked with include George Lopez, Whoopi Goldberg, John Leguizamo, Redd Foxx and Will Ferrell ...

In the late ’70s, Callner directed episodes of HBO’s On Location featuring the likes of Redd Foxx, George Carlin ... Robin Williams, Whoopi Goldberg, Dane Cook, George Lopez and, ost recently ...

He was them behind the camera for several episodes of HBO’s 1970s series On Location featuring the likes of George Carlin, Steve Martin and Chevy ... including projects for Seinfeld, Williams, Whoopi ...

He also worked with Steve Martin, Redd Foxx, John Leguizamo, Sam Kinison, Whoopi Goldberg, Whitney Cummings ... HBO specials with Robin Williams, George Carlin, Robert Klein, Billy Crystal ...