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Chester Morris as Horatio 'Boston Blackie' Black / Cyrus Peyton |
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Lynn Merrick as Geraldine 'Gerry' Peyton |
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Richard Lane as Inspector Farraday |
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Frank Sully as Sgt. Matthews |
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George E. Stone as The Runt |
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Claire Carleton as Mamie Kirwin |
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Russell Hicks as Attorney Harcourt (uncredited) |
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Charles Lane as Hack Hagen (uncredited) |
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Erik Rolf as Smiley Slade (uncredited) |
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John Tyrrell as Policeman (uncredited) |
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Emmett Vogan as Coroner (uncredited) |
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Wanda Perry as Tenant in Hallway (uncredited) |
| Writing | Jack Boyle | Writer |
| Writing | Paul Yawitz | Story |
| Writing | Ben Markson | Screenplay |
| Directing | Lew Landers | Director |
| Editing | Jerome Thoms | Editor |
| Production | John Stone | Producer |
