Claude Hulbert
Llewellyn Davies, 'The Admiral'
Michael Wilding
Johnny
Carla Lehmann
Jane
Tommy Trinder
Tommy Taylor
Jeanne De Casalis
Mrs. Pilkington
Henry Hewitt
Prof. Pilkington
John Laurie
McNab
James Hayter
Hans
Brian Fitzpatrick
Digby
Harold Warrender
Pilot's Mate
Eric Clavering
Bartender
John Glyn-Jones
Best Man
Julian Vedey
Resident of Tangier
John Wengraf
German Captain
Manning Whiley
German Commdr.
Victor Fairley
German Petty Officer
Robert Rendel
British Captain
Allan Jeayes
British Commdr.
Alec Clunes
British Pilot
Derek Elphinstone
British Observer
Jonny Bloor
Minor Role (uncredited)
Harold Coyne
Sailor (uncredited)
E. V. H. Emmett
Newsreel Commentator (voice)
Danny Green
Nightclub Bouncer (uncredited)
Bryan Herbert
Petty Officer on HMS Ferocious (uncredited)
Olaf Olsen
Minor Role (uncredited)
Tao Porchon
Minor Role (uncredited)
Johnnie Schofield
Officer Reading Heliograph Message (uncredited)