Scientists are continually challenged by unidentified strains of bacteria with mysterious origins. Could some of our most crippling plagues and epidemics be traced to the darkest voids of space--or even extraterrestrial intervention? During the Black Death of the Middle Ages, people reported bronze flying ships emitting a strange mist. As recently as 2011, NASA scientist Richard Hoover published evidence of life in meteorites. Is it possible that ancient aliens--as small as microbes--have shaped human history?
| Name | Type | Role | |
|---|---|---|---|
| Susan Michaels | Writer | ||
| Evan Goldstein | Producer | ||
| Max Thompson | Producer | Supervising Producer | |
| Philip Imbrogno | Guest Star | Self - Astronomer/Author, Files from the Edge | |
| Michael B.A. Oldstone | Guest Star | Self - Author, Viruses, Plagues and History | |
| William Bramley | Guest Star | Self - Author, The Gods of Eden | |
| Giorgio A. Tsoukalos | Guest Star | Self - Publisher, Legendary Times Magazine | |
| Philip Coppens | Guest Star | Self - Author, The Ancient Alien Question | |
| Sara Seager | Guest Star | Self - Prof. of Planetary Sciences, MIT | |
| Chandra Wickramasinghe | Guest Star | Self - Director, Cardiff Centre for Astrobiology | |
| Bill Birnes | Guest Star | Self - Author/Publisher, UFO Magazine | |
| David Childress | Guest Star | Self - Author, Technology of the Gods | |
| Cliff Mickelson | Guest Star | Self - Morgellons Patient | |
| Jeffrey Galpin | Guest Star | Self - Internist, Infectious Disease Specialist | |
| Erich von Däniken | Guest Star | Self - Author, Chariots of the Gods | |
| Adrienne Mayor | Guest Star | Self - Research Scholar, Stanford University | |
| Randy S. Wymore | Guest Star | Self - Dir., OSU-CHS Ctr. for the Investigation of Morgellons Disease | |
| George Noory | Guest Star | Self - Radio Host, Coast to Coast AM | |
| Christopher 'Chris' Pittman | Guest Star | Self - UFO Historian | |
| Jonathan Young | Guest Star | Self - Founding Curator, Joseph Campbell Archives | |
| Richard 'Ric' Rader | Guest Star | Self - Lecturer, UCLA Dept. of Classics | |
| Ian Lipkin | Guest Star | Self - Dir., Ctr. for Infection and Immunity, Columbia University | |
| Milton Wainwright | Guest Star | Self - Prof. Microbiology, University of Sheffield | |
| Kevin Burns | Executive Producer | ||
| Kim Sheerin | Executive Producer | Co-Executive Producer | |
| Scott Hartford | Executive Producer | Co-Executive Producer | |
| Susan E. Leventhal | Executive Producer | for HISTORY |