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Ronald Colman as George Apley |
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Peggy Cummins as Eleanor 'Ellie' Apley |
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Vanessa Brown as Agnes Willing |
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Mildred Natwick as Amelia Newcombe |
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Richard Haydn as Horatio Willing |
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Nydia Westman as Jane Willing |
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Percy Waram as Roger Newcombe |
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Richard Ney as John Apley |
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Edna Best as Catherine Apley |
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Charles Russell as Howard Boulder |
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Paul Harvey as Julian H. Dole |
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Kathleen Howard as Margaret |
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Francis Pierlot as Wilson |
| Directing | Joseph L. Mankiewicz | Director |
| Visual Effects | Fred Sersen | Visual Effects |
| Production | Fred Kohlmar | Producer |
| Sound | Cyril J. Mockridge | Music |
| Camera | Joseph LaShelle | Director of Photography |
| Editing | James B. Clark | Editor |
| Costume & Make-Up | Ben Nye | Makeup & Hair |
| Art | Thomas Little | Set Decoration |
| Costume & Make-Up | René Hubert | Costume Design |
| Art | James Basevi | Art Direction |
| Art | J. Russell Spencer | Art Direction |
| Directing | F.E. 'Johnny' Johnston | Assistant Director |
| Art | Paul S. Fox | Set Decoration |
| Sound | Bernard Freericks | Sound |
| Sound | Roger Heman Sr. | Sound |
| Sound | Alfred Newman | Music Director |
| Sound | Maurice De Packh | Orchestrator |
| Writing | Philip Dunne | Screenplay |
| Writing | George S. Kaufman | Theatre Play |
| Writing | John P. Marquand | Novel |
| Writing | John P. Marquand | Theatre Play |