Dane Clark
— Eddie Novoc
Geraldine Brooks
— Marie Willens
S.Z. Sakall
— Sammy
Wallace Ford
— Police Lt. Ferria
Lina Romay
— Libby Dennis
Richard Rober
— Sig Ketch
Douglas Kennedy
— Dr. Wirth / Opening Off-Screen Narrator
Mary Stuart
— Miss Purdy - Nurse
Philip Van Zandt
— Matt Hethron, Theatrical Agent
Rod Rogers
— Bernie Sallin
J. Scott Smart
— Undetermined Minor Role (scenes deleted)
Dave Barry
— The Comic (uncredited)