WCharles Berlitz
WMauro Biglino
WOtto Binder
WJames Herbert Brennan
WErich von Däniken
WVincent Gaddis
WDavid Icke
WPeter Kolosimo
WNicolai Levashov
WHenri Lhote
WBilly Meier
WJohn Michell (writer)
WPaul Misraki
WSalvador Freixedo
WRobert M. Schoch
WJean Sendy
WGiorgio A. Tsoukalos
WGeorge Hunt Williamson