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Bonita Granville as Nancy Drew |
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John Litel as Carson Drew |
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James Stephenson as Challon |
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Frankie Thomas as Ted Nickerson |
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Frank Orth as Captain Tweedy |
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Helena Phillips Evans as Mary Eldredge |
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Renie Riano as Effie Schneider |
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Charles Trowbridge as Hollister |
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Dick Purcell as Keiffer |
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Edward Keane as Adam Thorne |
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Mae Busch as Miss Tyson |
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Tommy Bupp as Spud Murphy (uncredited) |
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Betty Jane Graham as Brinwood Student (uncredited) |
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Stuart Holmes as Telegrapher (uncredited) |
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Vera Lewis as Miss Van Deering (uncredited) |
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Jack Mower as Radio Station Technician (uncredited) |
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John Ridgely as Radio Station Technician (uncredited) |
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Cliff Saum as Farmer (uncredited) |
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Joanne Tree as Student with Black Hat (uncredited) |
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Brandon Tynan as Ray Spires (uncredited) |
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Lottie Williams as Mrs. Ray Spires (uncredited) |
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Tom Wilson as Brennan (uncredited) |
| Directing | William Clemens | Director |
| Writing | Kenneth Gamet | Screenplay |
| Writing | Mildred Wirt Benson | Story |
| Writing | Carolyn Keene | Story |
| Writing | John Langan | Dialogue |
| Camera | L. William O'Connell | Director of Photography |
| Editing | Frank Magee | Editor |
| Art | Stanley Fleischer | Art Direction |
| Sound | Stanley Jones | Sound |
| Directing | Lester D. Guthrie | Assistant Director |
| Sound | Heinz Roemheld | Music |
| Production | Bryan Foy | Producer |
| Costume & Make-Up | Milo Anderson | Costume Design |
| Writing | Edward Stratemeyer | Novel |
