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ბელა ლუგოში as Prof. Dexter |
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John Carradine as Prof. John Gilmore |
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Frank Moran as Ape Man |
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Teala Loring as Anne Gilmore |
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Tod Andrews as Steve Rogers |
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Mary Currier as Hilda Gilmore |
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Ernie Adams as Tramp, Willie the Weasel |
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Eddy Chandler as Sergeant |
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George Zucco as Ape Man |
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Mike Donovan as Policeman Barney (uncredited) |
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George Eldredge as Policeman (uncredited) |
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Horace B. Carpenter as Theater Watchman (uncredited) |
| Production | Sam Katzman | Producer |
| Writing | Robert Charles | Screenplay |
| Production | Jack Dietz | Producer |
| Directing | Phil Rosen | Director |
| Sound | Glen Glenn | Sound Engineer |
| Art | Dave Milton | Set Designer |
| Camera | Marcel Le Picard | Director of Photography |
| Sound | Edward J. Kay | Music Director |
| Production | Barney A. Sarecky | Associate Producer |
| Crew | Ray Mercer | Special Effects |
| Directing | Arthur Hammond | Assistant Director |
| Editing | Carl Pierson | Editor |
