cast
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Howard Duff
Dave Pomeroy
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Linda Cristal
Dr. Paula Stevens
-
Stephen McNally
James Kincade
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Nehemiah Persoff
August Best
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Anne Jeffreys
Myra Pryor
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Oscar Beregi Jr.
Dr. Paul Cerbo
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Gregory Morton
Steadman
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Dennis Hopper
Goff
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George Barrows
Ernest
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John Hoyt
Dr. Milton Becker
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Steve Franken
Hal Johnson
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Mike Farrell
Dick Blaine
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Stanley Clements
Albert
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Rush Williams
Reporter
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Eilene Janssen
Information Clerk
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Wesley Lau
Lt. Brady
- George Sawaya Karl Sinden (Mr. X)