Archaeologists have discovered that many ancient sites were built with an acoustic purpose, and often resonate at a frequency that has a profound effect on the human brain. Could ancient people have been aware of a harmonic code? One that put them in contact with alien beings?
| Name | Type | Role | |
|---|---|---|---|
| Max Thompson | Writer | ||
| Erik Pinkston | Writer | ||
| W. Scott Goldie | Writer | ||
| Lara Shaghoian | Producer | Co-Producer | |
| Michelle Gorski | Producer | Supervising Producer | |
| Hugh Newman | Guest Star | Self - Co-Author, Megalith: Studies in Stone | |
| Ariel Bar Tzadok | Guest Star | Self - Founder, KosherTorah School | |
| John Vivanco | Guest Star | Self - Author, The Time Before the Secret Words | |
| Jeffrey Thompson | Guest Star | Self - Director, Center for Neuroacoustic Research | |
| Erich von Däniken | Guest Star | Self - Author, Chariots of the Gods | |
| David Childress | Guest Star | Self - Author, Technology of the Gods | |
| Mitch Horowitz | Guest Star | Self - Author, The Seeker's Guide to the Secret Teachings of All Ages | |
| Dr. Travis Taylor | Guest Star | Self - Astrophysicist | |
| Amir Hussain | Guest Star | Self - Prof. of Theological Studies, Loyola Marymount University | |
| Deepak Shimkhada | Guest Star | Self - Adj. Prof., Claremont School of Theology | |
| Jonathan Young | Guest Star | Self - Founding Curator, Joseph Campbell Archives | |
| Michio Kaku | Guest Star | Self - Author, The Future of Humanity | |
| William Henry | Guest Star | Self - Author/Investigative Mythologist | |
| Layne Little | Guest Star | Self - Lecturer, Religious Studies, U.C. Davis | |
| Michael Dennin | Guest Star | Self - Physicist, Univ. of California, Irvine | |
| Andrew Collins | Guest Star | Self - Author, Denisovan Origins | |
| Giorgio A. Tsoukalos | Guest Star | Self - Ancient Astronaut Theorist | |
| Felicia Beardsley | Guest Star | Self - Prof. of Anthropology, Univ. of La Verne | |
| Praveen Mohan | Guest Star | Self - Founder, Phenomenal Place | |
| Kevin Burns | Executive Producer | ||
| Erik Pinkston | Executive Producer | ||
| Susan E. Leventhal | Executive Producer | for HISTORY | |
| David Silver | Executive Producer | ||
| David Comtois | Executive Producer | ||
| Max Thompson | Executive Producer | ||
| Kim Egan | Executive Producer | ||
| Giorgio A. Tsoukalos | Executive Producer | Co-Executive Producer | |
| Joe Lessard | Executive Producer | ||
| Jon A. Levy | Director |