In 2017, a strange, cigar-shaped object enters the solar system from another star system, traveling in such an unusual trajectory it causes some astronomers to suggest that it could be an extraterrestrial craft.
| Name | Type | Role | |
|---|---|---|---|
| Kevin Burns | Writer | ||
| Eric Murphy | Writer | ||
| Max Thompson | Writer | ||
| Rob O'Brien | Producer | ||
| Andrew Collins | Guest Star | Self - Author, Lightquest | |
| Karen J. Meech | Guest Star | Self - Astronomer, University of Hawaii | |
| John Podesta | Guest Star | Self - White House Chief of Staff (1998 - 2001) | |
| Paul Davies | Guest Star | Self - Astrobiologist, Arizona State University | |
| Milton Wainwright | Guest Star | Self - Microbiologist | |
| Dr. Travis Taylor | Guest Star | Self - Astrophysicist | |
| Jon Lomberg | Guest Star | Self - Design Director, Voyager Record | |
| Nick Pope | Guest Star | Self - U.K. Ministry of Defense (1985-2006) | |
| Chris Rose | Guest Star | Self - Engineer | |
| Giorgio A. Tsoukalos | Guest Star | Self - Publisher, Legendary Times Magazine | |
| Josh Richards | Guest Star | Self - Mars One Candidate | |
| Jonathan Young | Guest Star | Self - Founding Curator, Joseph Campbell Archives | |
| Michael 'Mike' Bara | Guest Star | Self - Author, Hidden Agenda | |
| David Childress | Guest Star | Self - Author, The Anti-Gravity Files | |
| Linda Moulton Howe | Guest Star | Self - Investigative Journalist, Earthfiles | |
| Ariel Bar Tzadok | Guest Star | Self - Founder, Koshertorah School | |
| George Noory | Guest Star | Self - Radio Host, Coast to Coast AM | |
| William Henry | Guest Star | Self - Author/Investigative Mythologist | |
| Robert M. Wood | Guest Star | Self - Retired Aerospace Engineer | |
| Giorgio A. Tsoukalos | Executive Producer | Co-Executive Producer | |
| Kevin Burns | Executive Producer | ||
| Kim Sheerin | Executive Producer | ||
| David Silver | Executive Producer | ||
| Max Thompson | Executive Producer | ||
| Susan E. Leventhal | Executive Producer | for HISTORY |