Jason Alexander

Self

Chris Albrecht

Self - HBO Chairman / CEO

Hank Azaria

Self

Shelley Berman

Self

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

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)

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

Jackie Martling

Self (as Jackie 'The Joke Man' Martling)

Chuck McCann

Self

Michael McKean

Self

Larry Miller

Self

Martin Mull

Self

Kevin Nealon

Self

Taylor Negron

Self

Rick Overton

Self

Gary Owens

Self

Penn Jillette

Self

Teller

Self

Emo Philips

Self

Kevin Pollak

Self

Paul Reiser

Self

Andy Richter

Self

Don Rickles

Self

Chris Rock

Self

Jeff Ross

Self

Rita Rudner

Self

Bob Saget

Self

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

David Steinberg

Self

Jon Stewart

Self

Larry Storch

Self

Rip Taylor

Self

Dave Thomas

Self

David Brenner

Self

Bruce Vilanch

Self

Fred Willard

Self

Robin Williams

Self

Steven Wright

Self

Trey Parker

Cartman / Stan (voice)

Matt Stone

Kyle / Kenny (voice)

Tim Conway

Man in Closing Credits

Eddie Gorodetsky

Self