David Childress Self Robert Clotworthy Narrator Robert M. Schoch Self Jim Marrs Self Michael Cremo Self Giorgio Tsoukalos Self Nick Redfern Self Robert R. Cargill Self Steven M. Greer Self Erich von Däniken Self Philip Coppens Self Linda Moulton Howe Self Kevin Burns Executive Producer, Writer Deborah Blum Writer, Director Susan E. Leventhal Executive Producer Max Thompson Executive Producer, Writer Edith Becker Producer James Goldin Writer Brian Coughlin Producer, Writer Evan Goldstein Producer Kim Sheerin Executive Producer Eric Murphy Producer Colin R. Campbell Writer Jim Hense Producer Kaylan Eggert Writer Tree Wright Producer Frankie Glass Writer