Lurking in the oceans are creatures that defy explanation, such as octopuses that can edit their own DNA or animals that can regenerate their entire brain; examining if the oceans are acting as a giant petri dish for alien genetic experimentation.
| Name | Type | Role | |
|---|---|---|---|
| Max Thompson | Writer | ||
| Erik Pinkston | Writer | ||
| Kevin Burns | Writer | ||
| Erik Pinkston | Producer | ||
| Jonathan Young | Guest Star | Self - Founding Curator, Joseph Campbell Archives | |
| Thomas M. Iliffe | Guest Star | Self - Marine Biologist | |
| David Childress | Guest Star | Self - Vimana: Flying Machines of the Ancients | |
| Nick Pope | Guest Star | Self - U.K. Ministry of Defense (1985-2006) | |
| Chandra Wickramasinghe | Guest Star | Self - Director, Buckingham Centre for Astrobiology | |
| Andrew Collins | Guest Star | Self - Author, Beneath the Pyramids | |
| William Henry | Guest Star | Self - Author/Investigative Mythologist | |
| Queenie Chan | Guest Star | Self - Planetary Scientist, The Open University | |
| Bill Birnes | Guest Star | Self - Author, The Everything UFO Book | |
| Kirsten Fisher | Guest Star | Self - Assoc. Prof. of Biological Sciences, Cal State LA | |
| Michael Dennin | Guest Star | Self - Physicist, Univ. of California, Irvine | |
| Jason Martell | Guest Star | Self - Author, Ancient Alien Artifacts | |
| George Noory | Guest Star | Self - Radio Host, Coast to Coast AM | |
| Giorgio A. Tsoukalos | Guest Star | Self - Publisher, Legendary Times Magazine | |
| Michio Kaku | Guest Star | Self - Author, The Future of Humanity | |
| Susan E. Leventhal | Executive Producer | for HISTORY | |
| Kim Sheerin | Executive Producer | ||
| Kevin Burns | Executive Producer | ||
| Anthony Fiorino | Executive Producer | ||
| Giorgio A. Tsoukalos | Executive Producer | Co-Executive Producer | |
| David Silver | Executive Producer | ||
| Max Thompson | Executive Producer |