Cast 20
Dirk Bogarde
Lieutenant Graham
Denholm Elliott
Sergeant Corcoran
Eric Pohlmann
Captain Papadapoulos
Akim Tamiroff
Captain George One
Harold Siddons
Lieutenant Stevens
William Russell
Lieutenant Poole
Sam Kydd
Marine Boyd
Gérard Oury
Captain George Two
David Peel
Sergeant Evans
Michael Mellinger
Toplis
Alec Mango
Patroklis
Anthea Leigh
Marika
Lisa Gastoni
George Two's Girlfriend
Kay Callard
Nightclub Singer
Eileen Way
Greek Woman
Peter Burton
Marine Barrett (uncredited)
Ernest Bale
Submarine Executive Officer (uncredited)
Christopher Rhodes
German Officer (uncredited)
Robert Rietti
Italian Officer (uncredited)
Peter Taylor
German Officer (uncredited)
Crew 7
Lewis Milestone
Director
Robert Westerby
Screenplay
Wilkie Cooper
Director of Photography
Aubrey Baring
Producer
Maxwell Setton
Producer
Vladimir Sagovsky
Editor
Robert Gill
Original Music Composer