斯蒂文·格瑞尔

Steven M. Greer

饰：自己

罗伯特·克洛特沃西

Robert Clotworthy

饰：Self - Narrator

Edwin Barnhart

饰：(as Edwin Barnhart PhD)

David Childress

饰：Self - Author, Technology of the Gods

Gerardo Aldana

饰：(as Gerardo Aldana PhD)

David Cheetham

饰：(as David Cheetham PhD)

Adrian Gilbert

饰：Self - Author, 2012: Mayan Year of Destiny

Hugh Newman

饰：Self - Author, Earth Grids

Philip Coppens

饰：Self - Author, The Ancient Alien Question

乔治欧·A·索卡洛斯

Giorgio A. Tsoukalos

饰：Self - Publisher, Legendary Times Magazine

艾利希·冯·丹尼肯

Erich von Däniken

饰：Self - Author, Chariots of the Gods

George Noory

饰：Self - Radio Host, Coast to Coast AM