Name	Known for
Simon Allix Self - Narrator (UK) (archive footage) Self - Narrator (UK) (archive footage) See fewer	Outside the Wire (2021)
Lyle Armstrong Self - Stem Cell Researcher, Inst. Of Human Genetics (archive footage) Self - Stem Cell Researcher, Inst. Of Human Genetics (archive footage) See fewer	Ancient Aliens (2009)
Bill Birnes Self - Author, The Haunting Of America (archive footage) Self - Author, The Haunting Of America (archive footage) See fewer	The Riverman (2004)
David Childress Self - Author, Ancient Technology In Peru And Bolivia (archive footage) Self - Author, Ancient Technology In Peru And Bolivia (archive footage) See fewer	Pole to Pole
Robert Clotworthy Narrator Narrator See fewer	Red Notice (2021)
Philip Coppens Self - Author, The Lost Civilization Enigma (archive footage) Self - Author, The Lost Civilization Enigma (archive footage) See fewer	Alien Crash at Roswell: The UFO Truth Lost in Time (2013)
Peter Fiebag Self - Author, Eternity Machine (archive footage) Self - Author, Eternity Machine (archive footage) See fewer	Ancient Aliens (2009)
Philip Imbrogno Self - Astronomer & Author, Files From The Edge (archive footage) Self - Astronomer & Author, Files From The Edge (archive footage) See fewer	Unsolved Mysteries (1987)
Jason Martell Self - Author, Knowledge Apocalypse (archive footage) Self - Author, Knowledge Apocalypse (archive footage) See fewer	Ancient Astronauts: Our Extraterrestrial Legacy (2011)
Linda Moulton Howe Self - Investigative Journalist, Earthfiles (archive footage) Self - Investigative Journalist, Earthfiles (archive footage) See fewer	A Strange Harvest (1980)
George Noory Self - Radio Host, Coast To Coast AM (archive footage) Self - Radio Host, Coast To Coast AM (archive footage) See fewer	Alien Armageddon (2011)
Nick Redfern Self - Author, The Real Men In Black (archive footage) Self - Author, The Real Men In Black (archive footage) See fewer	Three Men Seeking Monsters
Craig Stanford Self - Prof. Of Anthropology And Biological Sciences, USC (archive footage) Self - Prof. Of Anthropology And Biological Sciences, USC (archive footage) See fewer	Lost Tapes (2008)
Ian Tattersall Self - Curator Of Anthropology, American Museum Of Natural History (archive footage) Self - Curator Of Anthropology, American Museum Of Natural History (archive footage) See fewer	Ancient Aliens (2009)
Fiorella Terenzi Self - Astrophysicist & Author (archive footage) Self - Astrophysicist & Author (archive footage) See fewer	Invisible Universe (1995)
Giorgio A. Tsoukalos Self - Host & Co-Narrator; Publisher, Legendary Times Magazine Self - Host & Co-Narrator; Publisher, Legendary Times Magazine See fewer	Ancient Aliens: Special Presentation (2022)
Erich von Däniken Self - Author - Chariots Of The Gods? (archive footage) Self - Author - Chariots Of The Gods? (archive footage) See fewer	Egypt (2003)
Jonathan Young Self - Founding Curator, Joseph Campbell Archives (archive footage) Self - Founding Curator, Joseph Campbell Archives (archive footage) See fewer	Ancient Aliens (2009)