Cast
Kenneth More
Lt. Cmdr. Robert Badger
Esma Cannon
Consul's Wife
Robert Nichols
Bill
Dirk Bogarde
Dr. Simon Sparrow (uncredited)
Andrew Sachs
Short-Changed US Seaman
Guy Standeven
American Naval Officer (uncredited)
Richard Vernon
Government Official at Enquiry (uncredited)
David Warner
Sailor Painting Ship (uncredited)
John Le Mesurier
George Dewberry Sr.
Paul Maxwell
Commander Spelling U.S.N.
Derek Fowlds
Carson
Warren Mitchell
'Honest' Marcel
Alexis Kanner
Garrett
Ronald Leigh-Hunt
Commander R.N.
Neil McCarthy
Sergeant
Dinsdale Landen
The Midshipman/Bowles
Rodney Bewes
Recruitment Interviewee (uncredited)
Graham Crowden
Naval Officer (uncredited)
John Phillips
Rear Admiral
Lloyd Nolan
Vice Admiral Ryan
Joan O'Brien
Lt. Carol Blair
Kenneth Griffith
Orator
Laurence Naismith
Admiral Blake
Jeremy Lloyd
The Midshipman/Dewberry
Michael Bentine
Psychologist
Mischa Auer
Colonel & President
Walter Fitzgerald
Admiral Thomas
Brian Wilde
Petty Officer Gilors
Wanda Ventham
Dartmouth Girl
Sidney James
Dance Instructor
Robin Hawdon
Williams
Tutte Lemkow
Corporal
Andrew Cruickshank
Admiral Filmer