罗伯特·克洛特沃西

Robert Clotworthy

饰：Self - Narrator

David Childress

饰：Self - Author, Technology of the Gods

乔治欧·A·索卡洛斯

Giorgio A. Tsoukalos

饰：Self - Publisher, Legendary Times Magazine

Robert R. Cargill

Robert R. Cargill

饰：(as Robert R Cargill PhD)

Jason Martell

饰：Self - Author, Knowledge Apocalypse

大卫·J·斯卡尔

David J. Skal

饰：(as David Skal)

Michael Coogan

饰：(as Michael Coogan PhD)

让-保罗·萨特

Jean-Paul Sartre

饰：(archive footage)

Robert Schoch

饰：(as Robert Schoch PhD)

Nick Pope

饰：Self - British Ministry of Defence, 1985 - 2006

Philip Coppens

饰：Self - Author, The Ancient Alien Question

Michael Dennin

饰：(as Michael Dennin PhD)

Jonathan Young

饰：(as Jonathan Young PhD)

艾利希·冯·丹尼肯

Erich von Däniken

饰：Self - Author, Chariots of the Gods

Thomas Bullard

饰：(as Thomas R Bullard PhD)