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

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

Lisa Lampanelli Self

Richard Lewis Self

Wendy Liebman Self

Howie Mandel Self

Merrill Markoe Self

Jay Marshall Self

Jackie Martling Self (as Jackie 'The Joke Man' Martling)

Chuck McCann Self

Michael McKean Self

Eric Mead Self

Larry Miller Self

Martin Mull Self

Kevin Nealon Self

Taylor Negron Self

Otto Petersen Self

Rick Overton Self

Gary Owens Self

Owen Morse Self

Jonathan Wee Self

Penn Jillette Self

Teller Self

Peter Pitofsky Self

Emo Philips Self

Kevin Pollak Self

Paul Reiser Self

Andy Richter Self

Don Rickles Self

Chris Rock Self

Gregg Rogell Self

Jeff Ross Self

Jon Ross Self

Rita Rudner Self

Bob Saget Self

T. Sean Shannon Self - Writer / Producer, SNL

Harry Shearer Self

Sarah Silverman Self

Bill Maher Self

Bobby Slayton Self

Dick Smothers Self (as The Smothers Brothers)

Tom Smothers Self (as The Smothers Brothers)

Doug Stanhope Self

Carrie Snow Self

David Steinberg Self

Jon Stewart Self

Larry Storch Self

Rip Taylor Self

Dave Thomas Self

David Brenner Self

Johnny Thompson Self

Peter Tilden Self

Bruce Vilanch Self

Fred Willard Self

Robin Williams Self

Steven Wright Self

Joe Garden Self (Staff of the Onion)

Todd Hanson Self (Staff of the Onion)

Tim Harrod Self (Staff of the Onion)

Chris Karwowski Self (Staff of the Onion)

Carol Kolb Self (Staff of the Onion)

Maria Schneider Self (The Onion Editorial Staff)

Trey Parker Cartman / Stan (voice)

Matt Stone Kyle / Kenny (voice)

Tim Conway Man in Closing Credits

Eddie Gorodetsky Self

Alan Kirschenbaum Self - Writer / Producer