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James Mason as The Murderer / Maj. Linden / Jonah Watson |
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Pamela Mason as The Artist / Pamela / Baroness Tanslan / Lilly |
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Scott Forbes as Capt. Stamm |
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Paul Cavanagh as Col. Heisler |
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Bruce Lester as Capt. van Buren |
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John Dodsworth as Lt. Meyerdorf |
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Judy Osborne as Dotty |
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Sean McClory as Jack Stuydevant |
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Vince Barnett as Berg |
| Directing | Roy Kellino | Director |
| Production | James Mason | Producer |
| Camera | Ernest Miller | Director of Photography |
| Camera | Joseph F. Biroc | Director of Photography |
| Editing | Maurice Wright | Supervising Editor |
| Writing | ალექსანდრ დიუმა | Short Story |
| Writing | Scott Forbes | Writer |
| Writing | Bruce Lester | Writer |
| Writing | Pamela Mason | Writer |
| Writing | James Mason | Writer |
