On screen
Cast
7 credited performers
Mark Bazeley
Self - Narrator (voice)
Guy Walters
Self - Historian
Tony McMahon
Self - Historian
Luis Elizondo
Self - Former US Intelligence Official
Karen Bellinger
Self - Anthropologist Archaeologist
Artwork unavailable
Thomas Gadinger
Self - Science Journalist
Artwork unavailable
Linda Rodriguez-McRobbie
Self - Journalist