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John Laurie as Edward Potter |
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Hector Ross as Inspector Greenaway |
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Avis Scott as Eloise Tremaine |
| Directing | John Wall | Director |
| Directing | Oscar Burn | Director |
| Production | Edwin J. Fancey | Producer |
| Camera | Cedric Williams | Director of Photography |
| Editing | Bob Higgins | Editor |
| Editing | Jack Wilman | Editor |
| Art | Don Russell | Art Direction |
