Calificación
Reparto

John Mills
Commandant Fraser

John Gregson
Lieutenant Alec Duffy

Donald Sinden
Lieutenant Tom Corbett

James Robertson Justice
Admiral Ryder

Michael Medwin
Smart

Theodore Bikel
German Officer

James Kenney
Abercrombie

William Russell
Ramsey

O.E. Hasse
Captain of the Tirpitz

Lee Patterson
Cox

Harry Towb
McCleery

Cyril Chamberlain
CPO Chubb

Tony Wager
George

Leslie Weston
Winley

Lyndon Brook
Diver Navigator, X2

Thomas Heathcote
Hutchins