Chester Morris
— 'Hardtack' Hamilton
Harriet Nelson
— Susan Merrill
John Hubbard
— Harley Ames
Larry Parks
— Recruit Kincaid
Forrest Tucker
— Recruit Madigan
Eddie Laughton
— Recruit Hughes
Lloyd Bridges
— Recruit Baldwin - Insurance Man
George McKay
— 'Mack' MacNamara
Stanley Andrews
— Cmdr. Merrill
John Tyrrell
— 'Red' Connors - Mechanic
Stanley Brown
— Pilot Jones
John Shay
— Henshaw - Co-Pilot
Hugh Beaumont
— The Radio Operator (uncredited)
Louis Jean Heydt
— Ralph Merrill (uncredited)
James Khan
— Man Delivering Monkey (uncredited)
Arthur O'Connell
— New Recruit (uncredited)
Paul Phillips
— Bailey - Pilot Leader (uncredited)
Betty Roadman
— Pearl (uncredited)