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Richard Dix as John Sinclair / John Carter |
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Lynn Merrick as Joan Martin Sinclair |
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Rhys Williams as Ernie Sparrow |
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James Cardwell as Fred (Doc) Graham |
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Tom Kennedy as Ferdinand / Hammerlock |
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Sam Ash as Gibson Motor Car Co. Executive (uncredited) |
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Egon Brecher as Dr. Rose (replaced by Frank Reicher) (uncredited) |
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Charles Coleman as Sinclair's Butler (uncredited) |
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Otto Forrest as The Whistler (uncredited) |
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Byron Foulger as Georgie (uncredited) |
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Martín Garralaga as Tony, Fruit Peddler (uncredited) |
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John Hamilton as Doctor (uncredited) |
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Stuart Holmes as Sinclair Executive (uncredited) |
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Wilbur Mack as Sinclair Executive (uncredited) |
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Charles Marsh as Sinclair Executive (uncredited) |
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Harold Miller as Sinclair Executive (uncredited) |
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Forbes Murray as Sinclair Executive (uncredited) |
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Gigi Perreau as Bobbie (uncredited) |
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Frank Reicher as Dr. Rose (uncredited) |
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Clinton Rosemond as Train Porter (uncredited) |
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Frank J. Scannell as Druggist (uncredited) |
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Minerva Urecal as Georgie's Wife (uncredited) |
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Robert B. Williams as Pharmacist (uncredited) |
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Douglas Wood as Paul Kitridge - Attorney (uncredited) |
| Production | Rudolph C. Flothow | Producer |
| Writing | Wilfred H. Petitt | Writer |
| Writing | William Castle | Writer |
| Editing | Dwight Caldwell | Editor |
| Directing | William Castle | Director |
| Writing | Allan Radar | Story |
| Sound | Mario Castelnuovo-Tedesco | Original Music Composer |
| Camera | George Meehan | Director of Photography |
| Sound | Jack A. Goodrich | Sound |
| Directing | Chris Beute | Assistant Director |
