Jason Alexander

Self

Chris Albrecht

Self - HBO Chairman / CEO

Hank Azaria

Self

Shelley Berman

Self

Steven Gary Banks

Billy the Mime (as Billy the Mime)

Lewis Black

Self

Mario Cantone

Self

George Carlin

Self

Drew Carey

Self

Mark Cohen

Self

Scott Thompson

Self

Billy Connolly

Self

Hugh Hefner

Self (archive footage) (uncredited)

Jimmy Kimmel

Self (archive footage) (uncredited)

Paul Provenza

Self (uncredited)

Rob Schneider

Self (archive footage) (uncredited)

Pat Cooper

Self

Wayne Cotter

Self

Andy Dick

Self

Frank Digiacomo

Self - Journalist

Phyllis Diller

Self

Susie Essman

Self

Carrie Fisher

Self

Joe Franklin

Self

Todd Glass

Self

Judy Gold

Self

Whoopi Goldberg

Self

Gilbert Gottfried

Self

Dana Gould

Self - Writer / Producer

Allan Harvey

Self

Eric Idle

Self

Dom Irrera

Self

Suzy Eddie Izzard

Self

Richard Jeni

Self

Jake Johannsen

Self

The Amazing Johnathan

Self (as Amazing Johnathan)

Jay Kogen

Self - Writer / Producer

Sue Kolinsky

Self

Paul Krassner

Self - Satirist / Editor, 'The Realist'

Cathy Ladman

Self