Distributia
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David AckroydNarrator (voice)
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Graham HancockHimself - Author
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John Anthony WestHimself - Author
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Robert SchochHimself - Author (as Dr. Robert Schoch)
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Tom HoldenHimself - Videographer
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Kihachiro AratakeHimself - Scuba Divemaster
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Masaaki KimuraHimself - University of the Ryukyus (as Dr. Masaaki Kimura)
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Cecilia HaglandHerself - Underwater Videographer (as 'C' Hagland)