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George Sanders as Anton Ragatzy |
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Mary Maguire as Lalage Sturdee |
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Barbara Blair as Wendy |
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Peter Murray-Hill as Basil Owen |
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Frederick Leister as Joseph Sturdee |
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Walter Hudd as Dr. Helmore |
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Kathleen Harrison as Mrs. Coates |
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Kynaston Reeves as Sir Montague Tollemach |
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Edmund Breon as Dr. Ladd |
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Ralph Truman as Sir Nathan Israel |
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Bernard Lee as Cameraman |
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Wilfrid Hyde-White as Cured Patient |
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Roddy McDowall as Cured Child |
| Editing | Flora Newton | Editor |
| Art | Cedric Dawe | Art Direction |
| Directing | Paul L. Stein | Director |
| Writing | Dudley Leslie | Writer |
| Writing | Dorothy Brandon | Story |
| Production | Walter C. Mycroft | Producer |
| Sound | Kenneth Leslie-Smith | Original Music Composer |
| Camera | Günther Krampf | Director of Photography |
