Jerry Lewis

Wilbur Swain / Caleb Swain

Madeline Kahn

Eliza Swain / Lutetia Swain

Marty Feldman

Sylvester

John Abbott

Dr. Frankenstein

Jim Backus

President of the U.S.

Samuel Fuller

Colonel Sharp

Merv Griffin

Anchorman

Virginia Graham

Gossip Specialist

Pat Morita

Ah Fong, the Chinese Ambassador

Ben Frank

Quentin, the Handyman

Cheri Harris

Maria, the Maid

Robert Hackman

Study Hall Supervisor

Eugene Choy

Lum Fung

Ken Johnson

Horace

Peter Kwong

Chinese Astronaut

Richard Lee-Sung

Ambassador's Courier

Steve Aaran

Cadet #1

Rebecca Edwards

Air Force One Lieutenant

Steven Paul

Air Force One 'Ensign'

Patrick Wright

Drill Instructor

Fred Saxon

TV Reporter

Snag Werris

News Reporter

Bonnie Paul

Network Page

Tallie Cochrane

Doctor

Janis Jamison

Patient

Jon Overholt

Doctor

Alan Gavin

Expectant Father

Lenny Rosenblatt

Cadet #2

Mark Ettlinger

Secret Service Agent

Bill Ferrell

Cadet Sergeant

Susan Allison

Xtra (uncredited)

Joe Straw

Alien (uncredited)

Professor Toru Tanaka

Sumo (uncredited)

Orson Welles

Aliens' Father (voice) (uncredited)