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Robert Taylor as Lt. Col Paul W. Tibbets |
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Eleanor Parker as Lucey Tibbets |
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James Whitmore as Maj. William M. Uanna |
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Larry Keating as Maj. Gen. Vernon C. Brent |
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Larry Gates as Capt. William Parsons |
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Marilyn Erskine as Marge Bratton |
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Stephen Dunne as Maj. Harry Bratton |
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Robert Burton as Gen. Samuel E. Roberts |
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Hayden Rorke as Dr. Ramsey |
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Lawrence Dobkin as Dr. Van Dyke |
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Jack Raine as Dr. Fiske |
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Jonathan Cott as Capt. Dutch van Kirk |
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Jeff Richards as Maj. Thomas Ferebee |
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John McKee as Sgt. Wyatt E. Duzenbury |
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Dick Simmons as Capt. Robert A. Lewis (Co-Pilot, Enola Gay) |
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Jim Backus as Gen. Curtis E. LeMay |
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Bess Flowers as Wife at Washington D.C. Airport |
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Lee MacGregor as Gen. Robert's Aide |
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Robert Stevenson as Military Officer (uncredited) |
| Directing | Melvin Frank | Director |
| Directing | Norman Panama | Director |
| Writing | Beirne Lay Jr. | Story |
| Writing | Melvin Frank | Writer |
| Writing | Norman Panama | Writer |
| Writing | Beirne Lay Jr. | Writer |
| Camera | Ray June | Director of Photography |
