Peter Coyote as Narrator (voice)

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

Don Berliner as Self - Aviation Historian

Jacques Vallée as Self - Physicist / Computer Scientist

James Fox as Self - Director, The Phenomenon

Gaylan King as Self - Ellsworth AFB, South Dakota

George Knapp as Self - Investigative Reporter

John Podesta as Self - Former White House Chief of Staff

Bill Richardson as Self - Former U.S. Energy Secretary

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

David Fravor as Self - Navy Strike Fighter Squadron

Garry Nolan as Self - Stanford School of Medicine

Salma Siddick as Self

Emma Kristiansen as Self - School Teacher

Lisil Field as Self - Social Worker

Kayleigh Van Druten as Self

Kudzanai Munya as Self

Emily Trim as Self - Artist

Francis Chirimuuta as Self

Judy Bates as Self - Headmistress, Ariel School

Fife Symington as Self

Gordon Cooper as Self - NASA Astronaut (archive footage)

John A. Samford as Self (archive footage)

J. Allen Hynek as Self (archive footage)

Gerald Ford as Self (voice) (archive sound)

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

Bill Clinton as Self (archive footage)

Laurance Rockefeller as Self (archive footage)

Steven Schiff as Self (archive footage)

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

Barack Obama as Self (archive footage)

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