• 
  Terence Young

  regizor

• 
  Ben Gazzara

  Rhys Williams
• 
  Audrey Hepburn

  Elizabeth Roffe
• 
  Omar Sharif

  Ivo Palazzi
• 
  James Mason

  Sir Alec Nichols
• 
  Irene Papas

  Simonetta Palazzi
• 
  Romy Schneider

  Helene Martin
• 
  Friedrich von Ledebur

• 
  Pinkas Braun

  Dr. Wal
• 
  Wolfgang Preiss

  Julius Prager
• 
  Yves Barsacq

  Bookseller
• 
  Maurice Ronet

  Charles Martin
• 
  Claudia Mori

  Donatella
• 
  Vadim Glowna

  Dr. Emile Joeppli
• 
  Donald Symington

  Henley

• 
  Gert Fröbe

  Inspector Max Hornung
• 
  Gabriele Ferzetti

  Maresciallo Campagna
• 
  Walter Kohut

  Krauss
• 
  Marcel Bozzuffi

  Man in Black
• 
  Dietlinde Turban

  Terenia
• 
  Charles Millot

  Commissaire Bloche
• 
  Hans von Borsody

  Peasant Guard
• 
  Dan van Husen

  Cameraman
• 
  Michelle Phillips

  Vivian Nichols
• 
  Beatrice Straight

  Kate Erling
• 
  Derrick Branche

  Chemin-de-fer Player
• 
  Maurice Colbourne

  Jon Swinton
• 
  Wulf Kessler

  Young Sam Roffe