Directed by
| John Rawlins | ||
Writing Credits
| Charles Martin | ... | (screenplay) and |
| Paul Perez | ... | (screenplay) |
| Erich Philippi | ... | (story "Secret of the Blue Room") |
Cast (in credits order) complete, awaiting verification
| Paul Kelly | ... | 'Scoop' Hanlon | |
| Constance Moore | ... | Stephanie Kirkland | |
| William Lundigan | ... | Larry Dearden | |
| Edwin Stanley | ... | Dr. Carroll | |
| Selmer Jackson | ... | Frank Baldrich | |
| Billy Wayne | ... | 'Vic' | |
| George Cooper | ... | 'Jake' | |
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P.J. Kelly | ... | Edwards - the Butler (as Patrick J. Kelly) |
| Florence Wix | ... | Linda Baldrich | |
| Harlan Briggs | ... | Frank Kendall - Editor | |
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Pat C. Flick | ... | Inventor - Nikolaus Popoulos |
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John Harmon | ... | Baldrich's Guard |
| Guy Usher | ... | Police Inspector McDonald | |
| Rest of cast listed alphabetically: | |||
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Thomas Carr | ... | Minor Role (uncredited) |
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Myrtis Crinley | ... | Minor Role (uncredited) |
| Billy Engle | ... | First inventor (uncredited) | |
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Allen Fox | ... | Minor Role (uncredited) |
| George Ovey | ... | Gatekeeper (uncredited) | |
| Raymond Parker | ... | Wolf (uncredited) | |
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Michael Slade | ... | Brown - Kendall's Assistant (uncredited) |
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Leonard Sues | ... | Office Boy (uncredited) |
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Margo Yoder | ... | Maid (uncredited) |
Produced by
| Barney A. Sarecky | ... | associate producer |
Cinematography by
| Milton R. Krasner | ... | director of photography |
Editing by
| Frank Gross | ||
Art Direction by
| Jack Otterson | ||
Makeup Department
| B. Preditty | ... | hair stylist (uncredited) |
Second Unit Director or Assistant Director
| Jack Bernhard | ... | second assistant director (uncredited) |
| Charles S. Gould | ... | assistant director (uncredited) |
Art Department
| Dan Fish | ... | props (uncredited) |
| N.V. Timchenko | ... | associate art director (uncredited) |
Sound Department
| Bernard B. Brown | ... | sound supervisor |
| Joe Lapis | ... | sound mixer |
| Robert Pritchard | ... | sound technician |
Camera and Electrical Department
| John Brooks | ... | gaffer (uncredited) |
| Roman Freulich | ... | still photographer (uncredited) |
| Maury Gertsman | ... | second camera operator (uncredited) |
| John Mehl | ... | assistant camera (uncredited) |
| George Schuman | ... | grip (uncredited) |
| S. Tenny | ... | best boy (uncredited) |
Editorial Department
| R. Davis | ... | assistant cutter (uncredited) |
Music Department
| Charles Previn | ... | musical director |
| Karl Hajos | ... | composer: stock music (uncredited) |
| Charles Henderson | ... | composer: stock music (uncredited) |
| Charles Previn | ... | composer: stock music (uncredited) |
| David Raksin | ... | composer: stock music (uncredited) |
| Heinz Roemheld | ... | composer: stock music (uncredited) |
| Frank Skinner | ... | composer: stock music (uncredited) |
| Franz Waxman | ... | composer: stock music (uncredited) |
Script and Continuity Department
| Maude Allen | ... | script clerk (uncredited) |
