• 
  Stanley Kramer

  regizor

• 
  Vivien Leigh

  Mary Treadwell
• 
  Simone Signoret

  La Condesa
• 
  Lee Marvin

  Bill Tenny
• 
  Alf Kjellin

  Freytag
• 
  José Ferrer

  Rieber
• 
  Michael Dunn (I)

  Glocken
• 
  Steven Geray

  Steward aboard Vera

• 
  Barbara Luna

  Amparo
• 
  George Segal

  David
• 
  Heinz Rühmann

  Lowenthal
• 
  Oskar Werner

  Dr. Schumann
• 
  Lilia Skala

  Frau Hutten
• 
  Eddie Baker

  Prizak
• 
  Kaaren Verne

  Frau Lutz

• 
  Christiane Schmidtmer

  Lizzi
• 
  Stan Adams

  Professor Hutten
• 
  Gila Golan

  Elsa
• 
  Elizabeth Ashley

  Jenny
• 
  Stanley Adams

  Professor Hutten
• 
  Charles Korvin

  Capt. Thiele
• 
  Henry Calvin

  Fat Man
• 
  José Greco

  Pepe (as Jose Greco)