Regia
Distributia
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Hugh MarloweDr. Russell A. Marvin -
Joan TaylorCarol Marvin -
Larry J. BlakeMotorcycle cop -
Dale Van SickelCrushed Beneath Wall
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Thomas Browne HenryVice Adm. Enright
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Grandon RhodesGen. Edmunds
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Forbes MurrayMilitary Officer at Experiment
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Morris AnkrumBrig. Gen. John Hanley -
Frank WilcoxAlfred Cassidy
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Bert StevensOfficer in UFO Sighting Montage
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Fred AldrichAirplane Passenger/Officer in Sighting Montage/Man in Saucer Attack
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Donald CurtisMaj. Huglin
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John ZarembaProf. Kanter
Echipa
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Leith Stevensmusic department
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George Duningmusic department
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Daniele Amfitheatrofmusic department
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Hans J. Saltermusic department
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David Raksinmusic department
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Charles H. Schneerproducător
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Sam Katzmanproducător
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Ray Harryhausenspecial effects -
Dale Van Sickelcascador
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Bernard Gordonscriitor
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Curt Siodmakscriitor
