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“…
| Actor | Role |
|---|---|
 Hildegard KnefLorelli | Lorelli |
 Götz GeorgeDonald "Don" Micklem | Donald "Don" Micklem |
 Richard MünchMario Orlandi di Alsconi | Mario Orlandi di Alsconi |
 Heinz ReinckeInspektor Dickes | Inspektor Dickes |
 Carl LangeCrantor | Crantor |
 Pinkas BraunFelix | Felix |
| AAdelheid SeeckLady Helen Bradley | Lady Helen Bradley |
 Hans PaetschSir Cyrus Bradley | Sir Cyrus Bradley |
 Jan HendriksCarlos | Carlos |
 Klaus KinskiShapiro | Shapiro |
 Hans ClarinHarry Mason | Harry Mason |
| JJoachim RakeButler Dixon | Butler Dixon |
 Rudolf FennerNot listed | Not listed |
| WWerner LievenNot listed | Not listed |
| FFrank StraassNot listed | Not listed |