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