Obsada
Bernard Miles
Royal Navy Mate
Alfred Drayton
Direktor
Thora Hird
German barmaid (uncredited)
John Williams
Voice over (uncredited)
Will Hay
Skipper
Leslie Banks
Taylor
Michael Redgrave
Russian
Michael Rennie
George
John Stuart
Royal Navy: Naval Officer
Manning Whiley
Naval officer (uncredited)
Albert Lieven
Gunter
John Boxer
Press
Ronald Adam
German businessman (uncredited)
Ronald Shiner
Shipping clerk (uncredited)
Frank Cellier
Schneider
Austin Trevor
U-boat Captain
Morland Graham
Civil Service
Cyril Chamberlain
Press
Robert Morley
Von Geiselbrecht
Michael Wilding
Captain (uncredited)
John Mills
Tom
Marius Goring
German Propaganda Officer
George Merritt
German: German Shelter Marshal
George Woodbridge
Quisling
Frederick Piper
Malta official (uncredited)