Cast
- Gene Kelly
- Self - Narrator
- Chico Marx
- (archive footage)
- Groucho Marx
- (archive footage)
- Harpo Marx
- (archive footage)
- Margaret Dumont
- (archive footage)
- Woody Allen
- Self
- Irving Brecher
- Self
- Dick Cavett
- Self
- George Fenneman
- Self
- George J. Folsey
- Self
- Charlotte Granet
- Self
- Margaret Irving
- Self
- Robert Klein
- Self
- Norman Krasna
- Self
- Arthur Marx
- Self
- Bill Marx
- Self
- Bob Marx
- Self
- Maxine Marx
- Self
- Nat Perrin
- Self
- Robert Pirosh
- Self
- Morrie Ryskind
- Self
- David Steinberg
- Self
