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Derek Farr as Ivan Mason / Dr. James Paxton |
 |
Ella Raines as Rhona Ellison |
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Donald Wolfit as Prof. Cattrell |
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Lisa Daniely as Nurse Mitzi |
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Bruce Beeby as Dr. Manning |
 |
Russell Napier as Scotland Yard Supt. Davidson |
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Сирил Кьюсак as Dr. Kelly |
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Frederick Piper as Medwood Inspector Hayman |
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Karl Stepanek as Dmitri Balinkev |
|
Alfred Maron as Ambulance Driver |
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John Welsh as George White - the Gamekeeper |
|
Olive Sloane as Mrs. Lemmin - the Landlady |
| Directing | Lance Comfort | Director |
| Writing | Anthony Armstrong | Novel |
| Writing | Guy Morgan | Writer |
| Art | Eric Saw | Art Direction |
