cast
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Glenn Corbett
Neil Stryker
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Cameron Mitchell
George Benedict
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Sharon Acker
Dr. Bettina Cooke
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Lew Ayres
Prof. Dylan MacAuley
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George Coulouris
Max Greene
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Dean Jagger
Carl Webster
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Steve Franken
Henry Maitland
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Tim O'Connor
Dr. Revere
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Jerry Douglas
Steve Perry
- Arch Whiting Mike Frome
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H.M. Wynant
Eric Stoner
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William Bryant
Truck Driver
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Virginia Gregg
Ward E Administrator
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Steven Marlo
Guard
- Buck Young Tom Nelson
- William Harlow (uncredited)
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Ben Wright
Doctor