• 

  Mike Bara

  Mike Bara

  饰：Himself

• 

  Ross Dedrickson

  Ross Dedrickson

  饰：Special Appearance (as Colonel Ross Dedrickson)

• 

  Carlos Figueroa

  Carlos Figueroa

  饰：Narrator

• 

  Donna Hare

  Donna Hare

  饰：Special Appearance

• 

  Jack Harris

  Jack Harris

  饰：Additional Narrative

• 

  John Maynard

  John Maynard

  饰：Special Appearance

• 

  Carol Rosin

  Carol Rosin

  饰：Special Appearance (as Dr. Carol Rosin)

• 

  Daniel Salter

  Daniel Salter

  饰：Special Appearance

• 

  Clifford E. Stone

  Clifford E. Stone

  饰：Special Appearance

• 

  Saskia Kraft van Ermel

  Saskia Kraft van Ermel

  饰：Special Appearance

• 

  斯蒂文·格瑞尔

  Steven M. Greer

  饰：自己

• 

  Steffan Anten

  Steffan Anten

  饰：Self

• 

  若泽·埃斯卡米利亚

  Jose Escamilla

  饰：自己

• 

  Cary Martynuik

  Cary Martynuik

  饰：Self