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Patty Duke as Laura Wilson |
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David McCallum as Mark Wilson |
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Dorothy McGuire as Sarah Wilson |
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Lew Ayres as Dr. Sam Carpenter |
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Beulah Bondi as Mrs. Medina |
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James T. Callahan as David Brody |
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Nelson Olmsted as Kurawicz |
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Harry Kerwin as Robert (uncredited) |
| Directing | Delbert Mann | Director |
| Writing | Art Wallace | Writer |
| Production | Delbert Mann | Producer |
| Art | Lawrence G. Paull | Art Direction |
| Sound | Morton Stevens | Original Music Composer |
| Costume & Make-Up | Marie Brown | Costumer |
| Art | Ross C. Burke | Property Master |
| Production | Charles W. Fries | Executive Producer |
| Production | Joe Wonder | Production Manager |
| Sound | Charles L. Campbell | Supervising Sound Editor |
| Sound | Gene Garvin | Sound Mixer |
| Camera | Charles La Rocca | Key Grip |
| Directing | Howard Grace | Assistant Director |
| Editing | Russell C. Nields | Assistant Editor |
| Crew | Gary S. Gerlich | Post Production Supervisor |
| Sound | Robert J. Litt | Recording Supervision |
| Production | Mort Zarcoff | Associate Producer |
| Costume & Make-Up | Fred B. Phillips | Makeup Artist |
| Camera | Charles F. Wheeler | Director of Photography |
| Editing | John F. Schreyer | Editor |
| Sound | Roger Sword | Sound Editor |
| Production | Joe Scully | Casting |
| Lighting | Bill Curtis | Electrician |
| Directing | Malcolm Atterbury Jr. | Script Supervisor |
