• 
  Alec Guinness

  Capt. Henry St. James
• 
  Yvonne De Carlo

  Nita St. James
• 
  Peter Bull

  Kalikan firing-squad officer
• 
  Charles Goldner

  Chief Officer Ricco
• 
  Ambrosine Phillpotts

  Majorie (with the major)
• 
  Celia Johnson

  Maud St. James
• 
  Nicholas Phipps

  The Major
• 
  Joyce Barbour

  Mrs. Reid (housekeeper)

• 
  Andreas Malandrinos

  Maitre d'Hotel
• 
  George Benson

  Mr. Salmon
• 
  Ferdy Mayne

  The Sheikh
• 
  Robert Adair

  Customs official #3
• 
  Roger Delgado

  Kalikan policeman
• 
  Sebastian Cabot

  Ali (vendor)
• 
  Armand Guinle

  Chief engineer

• 
  Henry B. Longhurst

  Prof. Killick
• 
  Miles Malleson

  Lawrence St. James