Jerry Lewis

as Warren Nefron / Dr. Perks / Gangster / Speed Armeter

Milton Berle

as Ms. Sultry

Sammy Davis Jr.

as Himself

Herb Edelman

as Dr. Jonas Pletchick

Foster Brooks

as The Pilot

Zane Buzby

as Waitress / Valet / Woman in Line

Dick Butkus

as Anti-Smoking Enforcer

Francine York

as Marie Du Bois