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Buster Crabbe as Dr. Robert Hammond, aka Junga |
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Charles Middleton as Rev. James 'Jim' Graham |
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Sheila Darcy as Betty Graham |
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Vince Barnett as Buckthorn 'Buck' the Guide |
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Weldon Heyburn as Bruce Kellogg |
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Robert Carson as Andy |
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Paul Scott as William Graham |
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Hal Price as Captain Aleck |
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Floyd Shackelford as Friday |
| Directing | Harry L. Fraser | Director |
| Writing | Rita Douglas | Screenplay |
| Writing | Rita Douglas | Story |
| Sound | Alberto Colombo | Original Music Composer |
| Art | Johnny Huff | Art Direction |
| Camera | Mervyn Freeman | Director of Photography |
| Production | Ted Richmond | Producer |
| Editing | Holbrook N. Todd | Editor |
| Camera | Jack Greenhalgh | Director of Photography |
| Crew | Marjorie Freeman | Technical Supervisor |
