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