War
In World War II, the greatest threat to the British navy is the German battleship Tirpitz. While anchored in a Norwegian fjord, it is impossible to attack by conventional means, so a plan is hatched for a special commando unit to attack it, using midget submarines to plant underwater explosives.
Directed by
Ralph Thomas
John Mills
Commandant Fraser
Walter Gotell
German Officer on Tirpitz
Michael Medwin
Smart
James Robertson Justice
Admiral Ryder
Theodore Bikel
German Officer
Donald Sinden
Lieutenant Tom Corbett
Lee Patterson
Cox
John Horsley
Lt. Anderson
Anthony Newley
Engineer, X2
William Franklyn
No. 1, X2
John Gregson
Lieutenant Alec Duffy
Lyndon Brook
Diver Navigator, X2
Harry Towb
McCleery
Cyril Chamberlain
CPO Chubb
O.E. Hasse
Captain of the Tirpitz
Tony Wager
George
Thomas Heathcote
Hutchins
William Russell
Ramsey
Frank Lawton
Naval Officer in Briefing Room (uncredited)
James Kenney
Abercrombie
Raymond Francis
Officer on Towing Sub. (1)
Leslie Weston
Winley
Guido Lorraine
Officer Interpreter
Basil Appleby
Officer on Towing Sub. (2)
Victor Harrington
RAF Officer (uncredited)
Arthur Howell
German Navy Officer (uncredited)
Barry Keegan
Sailor on Towing Sub (uncredited)

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