• 
  Roger Moore
• 
  Deborah Kerr

  Catherine Wilson
• 
  Glynis Johns

  Dizzy Clayton
• 
  Bill Owen
• 
  Brefni O'Rorke

  Mr. Hargrove
• 
  Muriel George

  Minnie
• 
  Roland Culver

  Richard
• 
  Edward Rigby

  Charlie

• 
  Allan Jeayes

  Commander
• 
  Eliot Makeham

  Mr. Staines
• 
  Leslie Dwyer

  Strupey
• 
  Robert Donat

  Robert Wilson
• 
  Bill Shine

  Webster
• 
  Ann Todd

  Elena
• 
  Peter Lawford

  Introduction - USA Version

• 
  Henry B. Longhurst

  Petty officer
• 
  Ivor Barnard

  Chemist
• 
  Elliott Mason

  Mrs. Hemmings
• 
  Harry Ross

  Bill
• 
  Billy Thatcher

  Essex
• 
  Brian Weske

  Gordon
• 
  Rosamund Taylor

  Irene