Bombay Clipper

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