When Aliens Attack (2011)

(Narrator (voice))

(Self - SETI Institute)

(Self - U.K. Ministry of Defense)

(Self - Director of Defense Studies, West Point)

(Self - Theoretical Physicist (archive footage))

(Self - USAF Air Command and Staff College)

(Self - Physicist & Author)

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

(Self - Author, Contact with Alien Civilizations)

(Self)

(Self - Author, Live Free or Die)

(Self - Author: Adventures Among Ants)

(Self - Washington State University)

(Self - Author, Emergency)

(Self - onPoint Tactical)

(Self - Gunnery Sergeant, USMC)

(Self - High Altitude Research Corp.)

(Survivor)

(Laboratory Scientist)

(Survivor)

(Scientist)

(Survivor)

(News Correspondent)

(Survivor)

(Resistance Leader)

(Survival Expert)

(Resistance Fighter)

(Survivor)

(Survivor)

(Astronomer)

(Survivor)

(Resistance Fighter)

(Agent Patterson)

(Survivor)

(Human Resistance Leader)