Jerry Lewis

Professor Julius F. Kelp / Buddy Love / Baby Kelp

Stella Stevens

Stella Purdy

Del Moore

Dr. Hamius R. Warfield

هنري جيبسون

Gibson, College Student

كاثلين فريمان

Millie Lemmon

Richard Kiel

Man in Gym (uncredited)

Norman Alden

Football Player

Howard Morris

Mr. Elmer Kelp

Elvia Allman

Edwina Kelp

Milton Frome

Dr. M. Sheppard Leevee