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Seasons
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Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
First Aired
Apr 20, 2010
Last Aired
Aug 6, 2026
Seasons
22
Episodes
291
Network
History
Studio
Prometheus Entertainment
Cast
Full credits →R
Robert Clotworthy
Narrator (voice)
G
Giorgio A. Tsoukalos
Self
W
William Henry
Self
D
David Childress
Self
E
Erich von Däniken
Self
L
Linda Moulton Howe
Self
D
David Wilcock
Self
G
George Noory
Self
N
Nick Pope
Self
M
Mike Bara
Self
B
Bill Birnes
Self
H
Hugh Newman
Self
R
Robert M. Schoch
Self
M
Michio Kaku
Self - Dr. Theoretical Physics Professor
N
Nick Redfern
Self
