Mark of the Tortoise

English millionaire Sir Cyrus Bradley is being blackmailed by “The Tortoise” Crime Syndicate. He is to pay £ 100,000.00 Pounds to stay alive and not be murdered. After his refusal to pay the money, he is quickly killed. Cyrus‘ nephew, Don Micklem, plans to avenge the death of his uncle and sets out on a quest to expose “The Tortoise“…

• 
  Alfred Vohrer
• 
  Eva Ebner

• 
  Hildegard Knef
  Lorelli
• 
  Götz George
  Donald "Don" Micklem
• 
  Richard Münch
  Mario Orlandi di Alsconi
• 
  Heinz Reincke
  Inspektor Dickes
• 
  Carl Lange
  Crantor
• 
  Pinkas Braun
  Felix
• 
  Adelheid Seeck
  Lady Helen Bradley
• 
  Hans Paetsch
  Sir Cyrus Bradley
• 
  Jan Hendriks
  Carlos
• 
  Klaus Kinski
  Shapiro
• 
  Hans Clarin
  Harry Mason
• 
  Joachim Rake
  Butler Dixon
• 
  Rudolf Fenner
• 
  Werner Lieven
• 
  Frank Straass