• 

  Steve Barash

  饰：Self - High-rise Architect

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  Steven Dusterwald

  饰：Self - Structural Engineer

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  Richard Gage

  饰：Self - Host, Architect

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  David Ray Griffin

  饰：Self

• 

  Niels Harrit

  饰：Self - Chemist

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  Robert Hopper

  饰：Self - Clinical Psychologist

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  Robert E. McCoy

  饰：Self - High-rise Architect

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  Kamal Obeid

  饰：Self - Structural Engineer

• 

  Frances Shure

  饰：Self - Counselor

• 

  Leslie Young

  饰：Self - Architect

• 

  Jeffrey Farrer

  饰：Himself - Physicist

• 

  Lynn Margulis

  饰：Herself - Scientist