Director/a
Louis Tarantino
DIRECTOR/A
Reparto (por orden de créditos)
James Lurie
Narrator(voice)
Seth Shostak
Self - SETI Institute
Nick Pope
Self - U.K. Ministry of Defense
Brian De Toy
Self - Director of Defense Studies, West Point
Stephen Hawking
Self - Theoretical Physicist(archiveFootage)
Paul Springer
Self - USAF Air Command and Staff College
Travis Taylor
Self - Physicist & Author
Bob Boan
Self - Co-Author, Alien Invasion: How to Defend Earth
Michael Michaud
Self - Author, Contact with Alien Civilizations
Paul Parsons
Self - Author, The Science of Dr. Who
John Ringo
Self - Author, Live Free or Die
Mark Moffett
Self - Author: Adventures Among Ants
Dirk Schulze-Makuch
Self - Washington State University
Neil Strauss
Self - Author, Emergency
Kevin Reeve
Self - onPoint Tactical
Quay Terry
Self - Gunnery Sergeant, USMC
Bill Brown
Self - High Altitude Research Corp.
Elise Cantu
Survivor
Carin Chea
Laboratory Scientist
Stephanie Colet
ACTOR
Zee Cruise
Leandro DiMonriva
Scientist
Kenneth Favell
Philip Hersh
News Correspondent
Sydney Jay
Christopher Clay Jones
Resistance Leader (2011)
Matt Lasky
Survival Expert
Eric Raymond Lim
Resistance Fighter
Desiree Martin
Tiffany Martinez
Richard Miraan
Astronomer
Jose Rosete
David Schlachtenhaufen
Christopher Warren
Agent Patterson (2011)
Avihai Yaffe
Justin Cuomo
Human Resistance Leader(uncredited)