• 
  Jay Lewis

  regizor

• 
  Richard Attenborough

  Knocker White
• 
  John Mills

  Puncher Roberts
• 
  Duncan Lamont

  Master-at-Arms
• 
  Lisa Gastoni

  Maria
• 
  Cyril Raymond

  P.M.O.
• 
  Lionel Jeffries

  George
• 
  Ferdy Mayne

  Interpreter

• 
  Ernest Clark

  Cmdr. Geoffrey Digby
• 
  Bryan Forbes

  Prof. Evans
• 
  John Le Mesurier

  The Marshal's Aide
• 
  Robert Ayres

  American Captain
• 
  Kenneth Griffith

  Sub-Lieutenant
• 
  Gordon Jackson

  Harry
• 
  Yvonne Romain

  Italian Girl

• 
  Thorley Walters

  Lt. Setley
• 
  Michael Hordern

  Capt. Hugh
• 
  Barry Foster

  Sailor at Dance
• 
  John Clarke

  Prof. Evans
• 
  Michael Howard

  Joe
• 
  Harry Locke

  CPO Blades
• 
  Clifford Mollison

  Sails
• 
  André Morell

  Marshal (as Andre Morell)
• 
  Harold Siddons

  Whiskers

• 
  Ronnie Taylor (I)

  camera and electrical departme
• 
  Paul Wilson (I)

  camera and electrical departme
• 
  Harry Waxman

  imagine
• 
  Humphrey Searle

  departament sunet
• 
  Manuel del Campo

  montaj
• 
  Jay Lewis

  producător
• 
  John Cox (I)

  sound department
• 
  Bob Jones (I)

  sound department
• 
  Bryan Forbes

  scriitor
• 
  Jay Lewis

  scriitor
• 
  John Clarke

  scriitor