Jerry Lewis

~ as ~

Wilbur Swain / Caleb Swain

Madeline Kahn

~ as ~

Eliza Swain / Lutetia Swain

Marty Feldman

~ as ~

Sylvester

Jim Backus

~ as ~

President of the U.S.

Merv Griffin

~ as ~

Anchorma

Pat Morita

~ as ~

Ah Fong, the Chinese Ambassador

Orson Welles

~ as ~

Aliens' Father (voice)

John Abbott

~ as ~

Dr. Frankenstein

Samuel Fuller

~ as ~

Colonel Sharp