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Eric Linden as Greg Carroll |
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Ben Alexander as Sgt. Paul |
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Donald Curtis as Lt. John Harmon |
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Ann Doran as Linda |
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Constance Worth as Alma Barton |
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Weldon Heyburn as Sgt. Blake |
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Earle Hodgins as Wallace |
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I. Stanford Jolley as Carl Flegler |
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Emmett Vogan as Harold |
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Bill Cartledge as Elevator Operator |
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Jack Cheatham as Agent Martin |
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Dudley Dickerson as Sam Dillingham |
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Ray Erlenborn as Pvt. Norton |
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Robert Frazer as Capt. Bryant |
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Boyd Irwin as Col. Longstreet |
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George Lynn as Prof. Carroll |
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Dennis Moore as Stanley Hume - 5th Columnist |
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Bernice Pilot as Mamie |
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William Ruhl as Capt. Gray |
| Directing | Joseph H. Lewis | Director |
| Writing | Arthur Hoerl | Story |
| Writing | Edward Bennett | Screenplay |
| Production | George R. Batcheller Jr. | Executive Producer |
| Directing | William Strohbach | Assistant Director |
| Editing | Howard Dillinger | Editor |
| Production | Earl Sheffer | Production Manager |
| Camera | Arthur Martinelli | Director of Photography |
| Production | E.B. Derr | Producer |
