Robert Clotworthy Narrator William Shatner Host Giorgio Tsoukalos Actor Erich von Däniken Actor David Childress Actor William Henry Actor Linda Moulton Howe Actor David Wilcock Actor Jonathan Young Actor Jason Martell Actor Kevin Burns Executive Producer David Silver Executive Producer Kim Sheerin Executive Producer Max Thompson Executive Producer, Writer Susan Leventhal Executive Producer Erik Pinkston Writer Kim Egan Executive Producer W. Scott Goldie Writer Doug Gordon Writer Jon A. Levy Director Gabriel Rotello Writer David Comtois Executive Producer Joe Lessard Executive Producer