The One, the Only... Groucho

Groucho Marx

Self (archive footage)

David Steinberg

Narrator

Dick Cavett

Self

Bill Cosby

Self

George Fenneman

Self

John Guedel

Self

Marvin Hamlisch

Self

Jack Lemmon

Self

Richard Lewis

Self

Art Linkletter

Self

Miriam Marx

Self

Nat Perrin

Self

Gloria Stuart

Self

Susan F. Walker

Director

David Ansen

Writer

Ellen Krass

Producer

Susan F. Walker

Producer

David X. Rodriguez

Post-Production Manager