Make 'Em Laugh: The Funny Business of America (2009)

Billy Crystal

Self - Host

Amy Sedaris

Self - Narrator(voice)

Leonard Maltin

Self - Film Critic and Historian

George Carlin

Self - Comedian

Larry Wilmore

Self

Larry Gelbart

Self - Writer for Bob Hope

Joan Rivers

Self - Comedienne

Anne Beatts

Self - Writer

Chris Rock

Self - Comedian

Robert Klein

Self - Comedian