Full Cast
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George C. Scott
Dan Charles Logan
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Richard Basehart
Dr. Roy Caldwell
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Martin Sheen
Maj. Holliford
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Barnard Hughes
Dr. Spencer
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Nicolas Beauvy
Chris Logan
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Paul Stevens
Col. William Franklin
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Stephen Young
Major Reintz
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Kenneth Tobey
Col. Alan A. Nickerson
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Robert Walden
Dr. Janeway
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William Jordan
Major Cooper
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Dabbs Greer
Dr. Thompson
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John Dierkes
Bill Parker
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Bette Henritze
Sarah Parker
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Lou Frizzell
Dr. Spike Boynton
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Ed Lauter
Simpson
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Phoebe Noel
Waitress
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Steve DeFrance
Ambulance Driver (uncredited)
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Anna Aries
Bit Part
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Fielding Greaves
Dr. Walter Steenrod, Chivington Research Laboratories
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Terry Wilson
Kaufman Trucking Co. driver
