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