Kenneth More
Lt. Cmdr. Robert Badger
Acting
Lloyd Nolan
Vice Admiral Ryan
Acting
Joan O'Brien
Lt. Carol Blair
Acting
Derek Fowlds
Carson
Acting
John Le Mesurier
George Dewberry Sr.
Acting
Brian Wilde
Petty Officer Gilors
Acting
Warren Mitchell
'Honest' Marcel
Acting
Wanda Ventham
Dartmouth Girl
Acting
Sid James
Dance Instructor
Acting
Mischa Auer
Colonel & President
Acting
Paul Maxwell
Commander Spelling U.S.N.
Acting
Nicholas Stuart
Captain Hurley U.S.N.
Acting
Sean Kelly
Simpson
Acting
Alexis Kanner
Garrett
Acting
Robin Hawdon
Williams
Acting
John Barrard
Consul
Acting
Esma Cannon
Consul's Wife
Acting
Kenneth Griffith
Orator
Acting
Marie France Dousset
Françoise
Acting
Michael Kilgarriff
Claude
Acting
Robert Nichols
Bill
Acting
Neil McCarthy
Sergeant
Acting
Tutte Lemkow
Corporal
Acting
Lally Bowers
Mrs. Dewberry
Acting
Laurence Naismith
Admiral Blake
Acting
Andrew Cruickshank
Admiral Filmer
Acting
Walter Fitzgerald
Admiral Thomas
Acting
Ronald Leigh-Hunt
Commander R.N.
Acting
Arthur Lovegrove
C.P.O. Froud
Acting
Jeremy Lloyd
The Midshipman/Dewberry
Acting
Dinsdale Landen
The Midshipman/Bowles
Acting
Michael Bentine
Psychologist
Acting
Rodney Bewes
Recruitment Interviewee (uncredited)
Acting
Dirk Bogarde
Dr. Simon Sparrow (uncredited)
Acting
Peter Brace
Leather Jacket Rebel (uncredited)
Acting
Robert Cawdron
Marcel's Bar Patron (uncredited)
Acting
Graham Crowden
Naval Officer (uncredited)
Acting
Bill Hibbert
Revolutionary (uncredited)
Acting
Andrew Sachs
Short-Changed US Seaman
Acting
Ian Selby
Shocked Man in Cafe (uncredited)
Acting
Guy Standeven
American Naval Officer (uncredited)
Acting
Richard Vernon
Government Official at Enquiry (uncredited)
Acting
David Warner
Sailor Painting Ship (uncredited)
Acting
John Phillips
Rear Admiral
Acting