• 
  John Frankenheimer

  regizor

• 
  Franklin Coen

  scenarist
• 
  Frank Davis

  scenarist

• 
  Burt Lancaster

  Paul Labiche
• 
  Paul Scofield

  Col. von Waldheim
• 
  Jeanne Moreau

  Christine
• 
  Suzanne Flon

  Mademoiselle Villard
• 
  Michel Simon

  Papa Boule, Engineer

• 
  Wolfgang Preiss

  Maj. Herren
• 
  Gérard Buhr

  Corporal
• 
  Howard Vernon

  Dietrich
• 
  Albert Rémy

  Didont
• 
  Paul Bonifas

  Spinet
• 
  Jean-Claude Bercq

  Major
• 
  Nick Dimitri

  German Soldier

• 
  Charles Millot

  Pesquet
• 
  Jean-Pierre Zola

  Octave
• 
  Jean Bouchaud

  Schmidt
• 
  Arthur Brauss

  Pilzer (as Art Brauss)
• 
  Jacques Marin

  Jacques
• 
  Richard Münch

  Von Lubitz (as Richard Munch)
• 
  Donald O'Brien

  Schwartz (as Donal O'Brien)