Errol Flynn as Douglas S. Lee

Fred MacMurray as Joe Blake

Ralph Bellamy as Lance Rogers

Alexis Smith as Linda Fisher

Robert Armstrong as Art Lyons

Regis Toomey as Tim Griffin

Allen Jenkins as Lucky James

Craig Stevens as John Thomas Anthony III

Herbert Anderson as Chubby Markham

Moroni Olsen as Senior Surgeon at San Diego

Dennie Moore as Mrs. James

Louis Jean Heydt as Swede Larson

Cliff Nazarro as Corps Man

Russell Hicks as Awards Speaker (uncredited)

Howard Hickman as Admiral (uncredited)

Charles Smith as Bellboy (uncredited)

Ann Doran as Joe's Blind Date (uncredited)

Addison Richards as Surgeon (uncredited)

Harold Miller as Doctor (uncredited)

Bert Moorhouse as Doctor (uncredited)

Bert Stevens as Nightclub Patron (uncredited)

Gig Young as Abbott - Guinea Pig 2 Experiment 32 (uncredited)