• 

  Chip Bolcik

  饰：Narrator

• 

  Roger Tilling

  饰：Narrator

• 

  Bruce J. MacFadden

  饰：Himself

• 

  Chuck Ciampaglio

  饰：Self - Wright State University

• 

  Lawrence Witmer

  饰：Self

• 

  Stephen Wroe

  饰：Self - University of New South Wales

• 

  Robert Leigh

  饰：Narrator

• 

  Luis Chiappe

  饰：Self