John Mills
Commandant Fraser
Acting
John Gregson
Lieutenant Alec Duffy
Acting
Donald Sinden
Lieutenant Tom Corbett
Acting
James Robertson Justice
Admiral Ryder
Acting
Michael Medwin
Smart
Acting
Theodore Bikel
German Officer
Acting
James Kenney
Abercrombie
Acting
William Russell
Ramsey
Acting
O.E. Hasse
Captain of the Tirpitz
Acting
Lee Patterson
Cox
Acting
Harry Towb
McCleery
Acting
Cyril Chamberlain
CPO Chubb
Acting
Tony Wager
George
Acting
Leslie Weston
Winley
Acting
Lyndon Brook
Diver Navigator, X2
Acting
Thomas Heathcote
Hutchins
Acting
Anthony Newley
Engineer, X2
Acting
John Horsley
Lt. Anderson
Acting
William Franklyn
No. 1, X2
Acting
Guido Lorraine
Officer Interpreter
Acting
Raymond Francis
Officer on Towing Sub. (1)
Acting
Basil Appleby
Officer on Towing Sub. (2)
Acting
Walter Gotell
German Officer on Tirpitz
Acting
Victor Harrington
RAF Officer (uncredited)
Acting
Arthur Howell
German Navy Officer (uncredited)
Acting
Barry Keegan
Sailor on Towing Sub (uncredited)
Acting
Frank Lawton
Naval Officer in Briefing Room (uncredited)
Acting