- Robert Clotworthy (Narrator (voice))
- Giorgio A. Tsoukalos (Self)
- Ariel Bar Tzadok (Self)
- Jonathan Young (Self)
- David Childress (Self)
- Erich von Däniken (Self)
- Linda Moulton Howe (Self)
- David Wilcock (Self)
- George Noory (Self)
- Philip Coppens (Self)
- Nick Pope (Self)
- Mike Bara (Self)
- Bill Birnes (Self)
- Hugh Newman (Self)
- Robert M. Schoch (Self)
- Nick Redfern (Self)
Ancient Aliens — S16E3
Episode: The Galactic Keyhole
Air Date: 2020-12-04
Runtime: 42 min
Overview
The mysterious symbol of the keyhole exists in mystic texts, sacred architecture and ancient artwork found all over the planet; exploring if this cryptic shape represents a profound connection to the cosmos.