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Siegfried Lowitz as Inspector Edward Keith-Kendrick |
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Harald Dietl as Inspector Olney |
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Ruth-Maria Kubitschek as Lady Alice |
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Günter Mack as Dr. Plummer |
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Katinka Hoffmann as Mary Cole |
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Anaid Iplicjian as Dolly Manticore |
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Ulrich Popp as Timothy Cole |
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Jutta Kammann as Ellen Derry |
| Directing | Wilhelm Semmelroth | Director |
| Writing | Wilhelm Semmelroth | Writer |
| Camera | Hans Braun | Director of Photography |
| Writing | Heinz Carwin | Adaptation |
| Writing | Philip Freund | Novel |
| Editing | Eva Schmidt | Editor |
| Production | Wolfgang Sperling | Unit Manager |
| Directing | Hildegard Schlang | Assistant Director |
| Camera | Otto Heinrich | Camera Operator |
| Camera | Karl Worm | Camera Operator |
| Camera | Helmut Handschel | Camera Operator |
| Camera | Hans-Dieter Christ | Camera Operator |
| Costume & Make-Up | Gerda Behrendt | Makeup Artist |
| Costume & Make-Up | Hans-Joachim Schmalor | Makeup Artist |
| Costume & Make-Up | Brigitte Scholz | Costume Designer |
| Sound | Hans Jönsson | Original Music Composer |
| Art | Paul Haferung | Production Design |
| Production | Harry Schneider | Production Manager |
