| Person | Type | Job | Role(s) |
|---|---|---|---|
 Savas Georgalis | Crew | Writing | Writer |
Louis C. Tarantino | Crew | Directing | Director |
 James Lurie | Cast | Actor | Narrator (voice) |
 Stephen Hawking | Cast | Actor | Self - Theoretical Physicist (archive footage) |
 Jose Rosete | Cast | Actor | Survivor |
 Carin Chea | Cast | Actress | Laboratory Scientist |
David Schlachtenhaufen | Cast | Resistance Fighter | |
 Eric Raymond Lim | Cast | Resistance Fighter | |
Justin Cuomo | Cast | Human Resistance Leader | |
 Matt Lasky | Cast | Actor | Survival Expert |
Elise Cantu | Cast | Survivor | |
Kenneth Favell | Cast | Survivor | |
Tiffany Martinez | Cast | Survivor | |
 Neil Strauss | Cast | Self - Author, Emergency | |
Richard Miraan | Cast | Astronomer | |
Avihai Yaffe | Cast | Survivor | |
Paul Parsons | Cast | Self | |
 Nick Pope | Cast | Self - U.K. Ministry of Defense | |
Christopher Clay Jones | Cast | Resistance Leader | |
 Seth Shostak | Cast | Actor | Self - SETI Institute |
Desiree Martin | Cast | Survivor | |
Michael Michaud | Cast | Self - Author, Contact with Alien Civilizations | |
Bob Boan | Cast | Self - Co-Author, Alien Invasion: How to Defend Earth | |
Brian De Toy | Cast | Self - Director of Defense Studies, West Point | |
Paul Springer | Cast | Self - USAF Air Command and Staff College | |
Travis Taylor | Cast | Self - Physicist & Author | |
John Ringo | Cast | Self - Author, Live Free or Die | |
Dirk Schulze-Makuch | Cast | Self - Washington State University | |
Mark Moffett | Cast | Self - Author: Adventures Among Ants | |
Sydney Jay | Cast | Survivor | |
| Person | Type | Job | Role(s) |
