Stars (in credits order)
Lucrezia Conklin
Self - Narrator(voice)
William Blanchard
Self - Base Commander, R.A.A.F.(creditOnly)
Craig Breedlove
Self - Former Land Speed Record Holder
Harold Brown
Self - Former Secretary of Defense(archiveFootage)
Robert Carradine
Self - Actor, Director
Chuck Clark
Self - Author, Astronomer
Lucien Clerebaut
Self - Secretary General, S.O.B.E.P.S., Brussels, Belgium
Joey Condon
Self - Comparative Religions Scholar, San Francisco, California
Philip J. Corso
Self - U.S. Army, Retired
Robert Dean
Self - Former Intelligence Analyst, S.H.A.P.E., NATO
Stanton Friedman
Self - Nuclear Physicist, UFO Researcher
Michael Gardner
Self - Private Pilot, Sussex, England
Walter Haut
Self - Public Information Officer, R.A.A.F.(creditOnly)
Roscoe Hillenkoetter
Self - U.S. Navy(creditOnly)
J. Allen Hynek
Self - Scientific Advisor to Blue Book(archiveFootage)
Jesse Marcel Jr.
Self - Helena, Montana
Jesse Marcel
Self - Former Intelligence Officer U.S. Army, Retired(archiveFootage)
Edgar D. Mitchell
Self - Apollo 14 Astronaut(voice)
William J. Perry
Ted Peters
Self - Center for Theology and Natural Sciences, Berkeley, California
Roger Ramey
Self - Commanding Officer, 8th Air Force(creditOnly)
Wendelle Stevens
Self - U.S. Air Force
Hoyt Vandenberg
Self - U.S. Air Force(creditOnly)
Orson Welles
Self(archiveFootage)(voice)
James Fox
Self - Interviewer(uncredited)(voice)