Calificación
Reparto

John Wayne
Captain Karl Ehrlich

Lana Turner
Elsa Keller

David Farrar
Commander Jeff Napier

James Arness
Schlieter

Tab Hunter
Cadet Wesser

Lyle Bettger
Chief Officer Kirchner

Paul Fix
Max Heinz

Claude Akins
Winkler

John Qualen
Chief Engineer Schmitt

Alan Hale Jr.
Wentz

Richard Davalos
Cadet Walter Stemme (as Dick Davalos)

Lowell Gilmore
Capt. Evans

Luis van Rooten
Matz

Wilton Graff
Consul General Hepke

Peter Whitney
Bachman

John Doucette
Bos'n