Actori
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Robert WagnerBrett
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Joseph CottenDr. Ziegler
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Stuart WhitmanAmiralul Michael Matthews
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Richard BasehartThe President
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Rosemary ForsythLia Holmes
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James DarrenDr. Talty
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Whit BissellProfessor Holmes
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Edward G. Robinson Jr.Dr. Burkson
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Charles DierkopQuinn
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William BryantCaptain Lunderson
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Paul StewartBarton
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Burr DeBenningAguila
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Larry PennellBill Holmes
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Erik L. NelsonTriton Controller
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Glenna SargentSally