Narrator (voice) 彼德·考约特

Self - Former Deputy Asst. Secretary of Defense for Intelligence Chris Mellon

Self - Aviation Historian Don Berliner

Self - Physicist / Computer Scientist Jacques Vallée

Self - Director, The Phenomenon James Fox

Self - Ellsworth AFB, South Dakota Gaylan King

Self - Investigative Reporter George Knapp

Self - Former White House Chief of Staff John Podesta

Self - Former U.S. Energy Secretary Bill Richardson

Self - Senate Majority Leader (2007-2015) Harry Reid

Self - Navy Strike Fighter Squadron David Fravor

Self - Stanford School of Medicine Garry Nolan

Self Salma Siddick

Self - School Teacher Emma Kristiansen

Self - Social Worker Lisil Field

Self Kayleigh Van Druten

Self Kudzanai Munya

Self - Artist Emily Trim

Self Francis Chirimuuta

Self - Headmistress, Ariel School Judy Bates

Self Fife Symington

Self - NASA Astronaut (archive footage) Gordon Cooper

Self (archive footage) John A. Samford

Self (archive footage) J. Allen Hynek

Self (voice) (archive sound) Gerald Ford

Self - Secretary of the Air Force (archive footage) Harold Brown

Self (archive footage) 比尔·克林顿

Self (archive footage) Laurance Rockefeller

Self (archive footage) Steven Schiff

Self - Apollo 14 Astronaut (archive footage) Edgar D. Mitchell

Self (archive footage) 贝拉克·奥巴马

Self - Psychiatrist, Harvard University (archive footage) John E. Mack