as Narrator (voice)

as Survivor

as Self - SETI Institute

as Self - U.K. Ministry of Defense

as Self - Director of Defense Studies, West Point

as Self - Theoretical Physicist (archive footage)

as Self - USAF Air Command and Staff College

as Self - Physicist & Author

as Self - Co-Author, Alien Invasion: How to Defend Earth

as Self - Author, Contact with Alien Civilizations

as Self - Author, Live Free or Die

as Self - Author: Adventures Among Ants

as Self - Washington State University

as Self - Author, Emergency

as Human Resistance Leader (uncredited)