Characters played by Valerie Andrushko
Self - Bio-archaeologist
Characters played by Fernando Astete
Self - Machu Picchu Archaeological Park Director
Characters played by Stella Nair
Self
Characters played by Johan Reinhard
Self - Archaeologist
Characters played by Craig Sechler
Narrator
Characters played by John Verano
Self - Anthropologist
Characters played by Kenneth Wright
Self - Paleohydrologist