- Kenneth More
- Lieutenant Commander 'Bodger' Badger
- Lloyd Nolan
- Ryan
- Joan O'Brien
- Carol
- Mischa Auer
- Colonel & President
- Jeremy Lloyd
- The Midshipman / Dewberry
- Dinsdale Landen
- The Midshipman / Bowles
- Derek Fowlds
- The Midshipman / Carson
- Denise Warren
- Collette
- John Le Mesurier
- Dewberry Sr.
- Lally Bowers
- Mrs. Dewberry
- Laurence Naismith
- Admiral Blake
- Andrew Cruickshank
- Admiral Filmer
- Walter Fitzgerald
- Admiral Thomas
- John Phillips
- Rear Admiral
- Ronald Leigh-Hunt
- Commander R.N.
- Arthur Lovegrove
- C.P.O. Froud
- Brian Wilde
- P.O. Gibbons
- Paul Maxwell
- Commander Spelling U.S.N.
- Nicholas Stuart
- Captain Hurley U.S.N.
- Sean Kelly
- Simpson
- Alexis Kanner
- Garrett
- Robin Hawdon
- Williams
- John Barrard
- Consul
- Esma Cannon
- Consul's Wife
- Kenneth Griffith
- Orator
- Marie France
- Francoise
- Michael Kilgarriff
- Claude
- Warren Mitchell
- Marcel
- Robert Nichols
- Bill
- Neil McCarthy
- Sergeant
- Tutte Lemkow
- Corporal
- Hank
- 'Albert'
- Jack Armstrong
- Officer at Admiral Ryan's Briefing
- Del Baker
- Royal Navy officer
- Joe Beckett
- Captain on Interview Board
- Michael Bentine
- Psychologist
- Rodney Bewes
- Recruitment interviewee
- Dirk Bogarde
- Dr. Simon Sparrow
- Peter Brace
- Leather Jacket Rebel
- Jim Brady
- Marcel's Bar Patron
- Robert Cawdron
- Marcel's Bar Patron
- Pauline Chamberlain
- Woman in Crowd
- Graham Crowden
- Naval Officer
- Fred Davis
- Officer on Bridge
- Peter Evans
- Commander at Admiral Thomas' Briefing
- Rex Garner
- French Waiter
- Bill Hibbert
- Revolutionary
- George Holdcroft
- Passer-by
- Sidney James
- Dance Instructor
- Fred Machon
- Carson's Father
- Jack Mandeville
- Officer Watching Stage Show
- Louis Matto
- French Waiter
- Colin McKenzie
- Captain at Admiral Thomas' Briefing
- Bill Rayment
- Moronian Citizen
- Andrew Sachs
- Short Changed US Seaman
- Norman Scace
- Officer on Interview Board
- Ian Selby
- Shocked Man in Cafe
- Jack Sharp
- Moronian Citizen
- Guy Standeven
- American Naval Officer
- Philip Stewart
- American Naval Officer
- John Tate
- Instructor at Royal Naval College
- Wanda Ventham
- Dartmouth Girl
- Richard Vernon
- Government Official at Inquiry
- David Warner
- Sailor Painting Ship
- Fred Wood
- Revolutionary
