James Montgomery 'Jim' Wilson
Frankie Gilroy Wilson
Tex Harper
Sonya Dietrich Landers
George Lewis
Abigail 'Mag' MacPherson
Dr. Gregory Landers
Tom Hare
Captain Chundra
Paul, the Purser
Bland (as Peter Lynn)
Lamb
Christopher Ruggles
R. C. Bradford
Chief inspector
Captain Caldwell
Submarine Gun Crewman (uncredited)
Man on Intercom (voice) (uncredited)
Sam
News photographer
Bellhop (uncredited)
Submarine Crewman firing on the Bombay Clipper (uncredited)
Steward (uncredited)
Hotel clerk
News photographer
Chambermaid
Guard (uncredited)
Waiter
Miss Kane - Secretary (uncredited)
Submarine commander
Submarine Gun Crewman (uncredited)
Singapore Policeman (uncredited)
Submarine officer
Director
Screenplay
Screenplay
Set Decoration
Costume Design
Assistant Director
Director of Photography
Music Director
Associate Producer
Art Direction
Assistant Art Director
Technical Advisor
Sound Supervisor
Editor
Costume Design
Sound