• 
  Wendy Toye

  regizor

• 
  David Warner

  Sailor painting ship
• 
  Dirk Bogarde

  Cameo appearance (Dr. Simon Sparrow)
• 
  Lloyd Nolan

  Vice Admiral Ryan
• 
  Ronald Leigh-Hunt

  Commander Royal Navy
• 
  Richard Vernon
• 
  Walter Fitzgerald

  Admiral Thomas
• 
  Kenneth More

  Lt. Cmdr. Robert Badger

• 
  Graham Crowden
• 
  John Le Mesurier

  George Dewberry Sr.
• 
  Michael Kilgarriff

  Cafe proprietor
• 
  Mischa Auer

  Colonel & President
• 
  Kenneth Griffith

  Orator
• 
  Paul Maxwell

  Cmdr. Spelling, USN
• 
  Sid James

  Dance Instructor

• 
  Derek Fowlds

  Carson
• 
  Laurence Naismith

  Admiral Blake
• 
  Warren Mitchell

  'Honest' Marcel
• 
  Brian Wilde

  Petty Officer Gilors
• 
  Jeremy Lloyd

  Dewberry Jr.
• 
  Lally Bowers

  Mrs. Cynthia Dewberry, his wife
• 
  Andrew Cruickshank

  Admiral Filmer
• 
  Dinsdale Landen

  Bowles
• 
  Joan O'Brien

  Lt. Carol Blair
• 
  John Phillips

  Rear Admiral
• 
  Denise Warren

  Collette

• 
  Gerry Turpin

  camera and electrical departme
• 
  Otto Heller

  imagine
• 
  Ron Grainer

  departament sunet
• 
  Julie Harris

  costume
• 
  Richard Best

  montaj
• 
  George Partleton

  make-up department
• 
  Leslie Bricusse

  Soundtrack
• 
  Howard Dimsdale

  scriitor