• 
  John G. Avildsen

  regizor

• 
  George C. Scott

  Barney Caine
• 
  Marlon Brando
• 
  Marthe Keller

  Lisa Spangler
• 
  Ike Eisenmann

  Tony
• 
  Richard Lynch

  General Helmut Kladen/Frank Tedesco
• 
  John Van Dreelen

  Hans Lehman, Prefect of Police Berlin
• 
  Wolfgang Preiss

  Franz Tauber, Swiss businessman

• 
  Gerard Murphy

  Herbert Glenn, Clement's Chauffeur
• 
  Marshall Thompson

  Geologist #1
• 
  G.D. Spradlin

  Arthur Clements
• 
  Ferdy Mayne

  Professor Siebold
• 
  Dieter Schidor

  Assassin
• 
  John Gielgud

  Dr. Abraham Esau, Director Reich Energy
• 
  Jan Niklas

  Gestapo Captain

• 
  Craig T. Nelson

  Geologist #2
• 
  Reinhard Kolldehoff

  Reimeck
• 
  Alan North

  John Nolan, Chief of Tactical Squad LAPD
• 
  Beatrice Straight

  Kay Neeley
• 
  Robin Clarke

  Major Tom Neeley
• 
  Werner Kreindl

  Schellenberg