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  Bray Poor

  饰：Self - Narrator

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  Todd Barber

  饰：Self - Propulsion Engineer, NASA

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  Linda Spilker

  饰：Self - Principal Scientist, Saturn Ring Expert and Casini Deputy Project Scientist, Nasa Jet Propulsion Laboratory

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  Kevin H. Baines

  饰：Self - Planetary Scientist; Principal Scientist and Cassini

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  Andrew Ingersoll

  饰：Self - Planetary Climatologist; Earle C Anthony Professor of Planetary Science, Division of Geological and Planetary Sciences, California Institute of Technology