Theorists speculate about metal artifacts that could provide physical evidence of extraterrestrials visiting Earth in the distant past; in Jacksonville, Fla. a strange metallic sphere falls from the sky; an ancient aluminum wedge baffles historians.
| Name | Type | Role | |
|---|---|---|---|
| Katie Raines DeLoach | Writer | ||
| Max Thompson | Writer | ||
| Joe Escalante | Writer | ||
| Katie Raines DeLoach | Producer | ||
| Jonathan Young | Guest Star | Self - Founding Curator, Joseph Campbell Archives | |
| Ana Gruia | Guest Star | Self - Curator, National Museum of Transylvanian History | |
| David Wilcock | Guest Star | Self - Author, The Ascension Mysteries | |
| George Noory | Guest Star | Self - Radio Host, Coast to Coast AM | |
| Dick Burnett | Guest Star | Self - Betz Family Friend | |
| Michael Dennin | Guest Star | Self - Physicist, Univ. of California, Irvine | |
| William Henry | Guest Star | Self - Author, Lost Secrets of the Watchers | |
| Robert Schoch | Guest Star | Self - Author, Forgotten Civilization | |
| Tom Burnett | Guest Star | Self - Betz Family Friend | |
| Erich von Däniken | Guest Star | Self - Author, Chariots of the Gods | |
| Jeff Williams | Guest Star | Self - Geologist | |
| Jason Martell | Guest Star | Self - Author, Knowledge Apocalypse | |
| Linda Moulton Howe | Guest Star | Self - Investigative Journalist, Earthfiles | |
| David Childress | Guest Star | Self - Author, Technology of the Gods | |
| Giorgio A. Tsoukalos | Guest Star | Self - Publisher, Legendary Times Magazine | |
| Ron Kivett | Guest Star | Self - Investigative Reporter | |
| Kim Sheerin | Executive Producer | ||
| Shannon Owen | Executive Producer | Co-Executive Producer | |
| David Silver | Executive Producer | ||
| Max Thompson | Executive Producer | ||
| Giorgio A. Tsoukalos | Executive Producer | Co-Executive Producer | |
| Kevin Burns | Executive Producer | ||
| Kristina Djokic | Executive Producer | Co-Executive Producer | |
| Susan E. Leventhal | Executive Producer | for HISTORY |