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Mark Stevens as Dr. Frank Overton |
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Marianne Koch as Dr. Helen Wieland |
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Wolfgang Lukschy as Inspector Prenton |
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Joachim Hansen as Tony Stein |
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Delphi Lawrence as Joan Overton |
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Walter Rilla as Sir Keith |
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Helmut Weiss as Chairman |
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Albert Bessler as Martin |
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John Longden as Prof. Hubbard |
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Sigurd Lohde as Dr. Karl Merkheimer |
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Wolfgang Gunther as Sgt. Grun |
| Writing | Evelyn Frazer | Writer |
| Directing | Bernard Knowles | Director |
| Production | Ronald Rietti | Producer |
| Sound | Eric Spear | Original Music Composer |
| Camera | Robert Ziller | Director of Photography |
| Production | Артур Боаунер | Producer |
| Editing | Steven Collins | Editor |
| Production | Irving Dennis | Co-Producer |
| Costume & Make-Up | Vera Mügge | Costume Design |
| Costume & Make-Up | Heinrich Stamm | Makeup Artist |
| Art | Ханс Юрген Кибах | Art Direction |
| Costume & Make-Up | Sabine Brodt | Hairstylist |
| Directing | Ursula Grossmann | Continuity |
| Directing | Margit Rausch | Assistant Director |
| Camera | Dietrich Schnelle | Still Photographer |
| Camera | Johannes B. Nowak | Camera Operator |
| Production | Reinhard Michaelis | Production Accountant |
| Production | Felix Siebenrogg | Production Supervisor |
