Archaeologists and anthropologists make discoveries that receive no notice because they don't fit into the accepted scientific paradigm, such as an ancient hammer found in Texas or elongated skulls found on nearly every continent.
| Name | Type | Role | |
|---|---|---|---|
| Kevin Burns | Writer | ||
| Kristina Djokic | Writer | ||
| Max Thompson | Writer | ||
| Katie Raines DeLoach | Producer | ||
| John Southon | Guest Star | Self - Researcher, Earth Systems Science, Univ. of California, Irvine | |
| Erich von Däniken | Guest Star | Self - Author, Chariots of the Gods | |
| John Brandenburg | Guest Star | Self - Plasma Physicist, Orbital Technologies | |
| David Childress | Guest Star | Self - Author, Lost Cities and Ancient Mysteries of South America | |
| Peter Ward | Guest Star | Self - Professor of Paleontology, Univ. of Washington | |
| William Henry | Guest Star | Self - Author, The Secret of Sion | |
| David Wilcock | Guest Star | Self - Author, The Ascension Mysteries | |
| Jeff Williams | Guest Star | Self - Geologist | |
| Andrew Collins | Guest Star | Self - Author, Lightquest | |
| Giorgio A. Tsoukalos | Guest Star | Self - Publisher, Legendary Times Magazine | |
| Georgeann McGuinness | Guest Star | Self - Radiologist | |
| Scott Creighton | Guest Star | Self - Author, The Great Pyramid Hoax | |
| Robert R. Cargill | Guest Star | Self - Archaeologist, Univ. of Iowa | |
| Jared Collins | Guest Star | Self - Art Collector | |
| Michael Dennin | Guest Star | Self - Physicist, Univ. of California, Irvine | |
| Robert Schoch | Guest Star | Self - Author, Forgotten Civilization | |
| Jonathan Young | Guest Star | Self - Founding Curator, Joseph Campbell Archives | |
| Todd Disotell | Guest Star | Self - Molecular Anthropologist, New York University | |
| Shannon Owen | Executive Producer | Co-Executive Producer | |
| Kevin Burns | Executive Producer | ||
| Susan E. Leventhal | Executive Producer | for HISTORY | |
| Max Thompson | Executive Producer | ||
| Kim Sheerin | Executive Producer | ||
| Giorgio A. Tsoukalos | Executive Producer | Co-Executive Producer | |
| David Silver | Executive Producer | ||
| Kristina Djokic | Executive Producer | Co-Executive Producer |