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)

Paul Provenza

Penn Jillette