A group of hooded vigilantes hang wrong-doers with a rope stolen from Scotland Yard's Black Museum.
| Actor | Role |
|---|---|
 Hansjörg FelmyJohn Hillier | John Hillier |
 Maria PerschyAnn Barry | Ann Barry |
 Dieter BorscheMac Ferguson | Mac Ferguson |
 Wolfgang PreissMorel Smith | Morel Smith |
 Harry RiebauerPhilip Trooper | Philip Trooper |
 Rudolf ForsterFrancis Barry | Francis Barry |
 Chris HowlandCabby Pennypacker | Cabby Pennypacker |
 Rudolf FernauJerome | Jerome |
 Bruno W. PantelNot listed | Not listed |
| AAlbert BesslerFrancois Bréant | Francois Bréant |
| HHarald SawadeNot listed | Not listed |
| NNarziß SokatscheffNot listed | Not listed |
| GGünter GlaserMuseumschef | Museumschef |
 Alexander EngelNot listed | Not listed |
 Stanislav LedinekNot listed | Not listed |
| EEdwin ZbonekNot listed | Not listed |