Did aliens from the tiny star Sirius B visit humans in the distant past, imparting the knowledge of civilization to peoples thousands of miles apart? And did they leave behind a vital clue in the form of a word that's embedded in languages all over the globe?
| Name | Type | Role | |
|---|---|---|---|
| Max Thompson | Writer | ||
| Chris Gattanella | Writer | ||
| Gabriel Rotello | Writer | ||
| Kevin Burns | Writer | ||
| Lara Shaghoian | Producer | Co-Producer | |
| Gabriel Rotello | Producer | ||
| William Henry | Guest Star | Self - Author/Investigative Mythologist | |
| Hugh Newman | Guest Star | Self - Author, Earth Grids | |
| Chandra Wickramasinghe | Guest Star | Self - Director: Buckingham Centre for Astrobiology | |
| Ben Vonderheide | Guest Star | Self - Art Collector | |
| Jason Martell | Guest Star | Self - Author, Ancient Alien Artifacts | |
| John Brandenburg | Guest Star | Self - Chief Astronautic Scientist, Kepler Aerospace | |
| Dominic Steavu | Guest Star | Self - Assoc. Prof. UC Santa Barbara | |
| David Childress | Guest Star | Self - Author, Technology of the Gods | |
| George Noory | Guest Star | Self - Radio Host, Coast to Coast AM | |
| Linda Moulton Howe | Guest Star | Self - Investigative Journalist, Earthfiles | |
| Giorgio A. Tsoukalos | Guest Star | Self - Publisher, Legendary Times Magazine | |
| Michio Kaku | Guest Star | Self - Author, The Future of Humanity | |
| Jared Collins | Guest Star | Self - Art Collector/Researcher | |
| Peter Ward | Guest Star | Self - Geologist, University of Washington | |
| Bill Birnes | Guest Star | Self - Author, UFOs and the White House | |
| Kim Sheerin | Executive Producer | ||
| Anthony Fiorino | Executive Producer | ||
| Kevin Burns | Executive Producer | ||
| Giorgio A. Tsoukalos | Executive Producer | Co-Executive Producer | |
| David Silver | Executive Producer | ||
| Susan E. Leventhal | Executive Producer | for HISTORY | |
| Max Thompson | Executive Producer |