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