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Michael J. Pollard as Dill |
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Harry Guardino as Arthur Belding |
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Bradford Dillman as Jonathan Fields |
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Hope Lange as Helen Atterbury |
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Pat Hingle as Lew Haley |
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Susan Saint James as Ida |
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Diana Hyland as Sarah |
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Victor Jory as Edward Arkroyd |
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Paul Stewart as Dr. Simon Joshua |
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Roy Jenson as Arnie |
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Lev Mailer as |
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Susanne Benton as Arlene |
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Jim Creech as |
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Kent McCord as |
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Joan Bradley as |
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James Doohan as Building Superintendent (uncredited) |
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Donald Mitchell as Peter (uncredited) |
| Camera | John L. Russell | Director of Photography |
| Art | Hal Overell | Set Decoration |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Costume & Make-Up | Grady Hunt | Costume Supervisor |
| Art | Howard E. Johnson | Art Direction |
| Production | Mort Zarcoff | Associate Producer |
| Sound | Quincy Jones | Music |
| Costume & Make-Up | Larry Germain | Hairstylist |
| Editing | Edward A. Biery | Editor |
| Production | Ranald MacDougall | Producer |
| Art | John McCarthy Jr. | Set Decoration |
| Sound | Waldon O. Watson | Sound |
| Directing | James Goldstone | Director |
| Writing | Howard Fast | Novel |
| Writing | Peter Stone | Writer |
