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Dorothy Malone as Diana Barrymore |
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Errol Flynn as John Barrymore |
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Efrem Zimbalist Jr. as Vincent Bryant |
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Ray Danton as John Howard |
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Neva Patterson as Blanche Oehrichs / Michael Strange |
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Murray Hamilton as Charlie Snow |
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Martin Milner as Lincoln Forrester |
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John Dennis as Walter Gerhardt |
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Ed Kemmer as Robert Wilcox |
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Robert Ellenstein as Gerald Frank |
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John Doucette as Crowley (uncredited) |
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Kathleen Freeman as Miss Magruder (uncredited) |
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Bess Flowers as Party Guest (uncredited) |
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Richard Harrison as Swimming Companion (uncredited) |
| Directing | Art Napoleon | Director |
| Writing | Diana Barrymore | Book |
| Writing | Gerold Frank | Book |
| Production | Henry Blanke | Producer |
| Sound | Ernest Gold | Music |
| Camera | Carl E. Guthrie | Director of Photography |
| Editing | Owen Marks | Editor |
| Art | John Beckman | Art Direction |
| Art | George James Hopkins | Set Decoration |
| Costume & Make-Up | Orry-Kelly | Costume Design |
| Costume & Make-Up | Gordon Bau | Makeup Supervisor |
| Directing | George Vieira | Assistant Director |
| Sound | Francis E. Stahl | Sound |
| Writing | Art Napoleon | Screenplay |
| Writing | Jo Napoleon | Screenplay |
| Camera | Nicholas Musuraca | Director of Photography |
| Camera | Pat Clark | Still Photographer |
