Jerry Lewis

Character: Wilbur Swain / Caleb Swain

Madeline Kahn

Character: Eliza Swain / Lutetia Swain

Marty Feldman

Character: Sylvester

Jim Backus

Character: President of the U.S.

Merv Griffin

Character: Anchorma

Pat Morita

Character: Ah Fong, the Chinese Ambassador

Orson Welles

Character: Aliens' Father (voice)

John Abbott

Character: Dr. Frankenstein

Samuel Fuller

Character: Colonel Sharp