Essentially early proto ancestors of modern mankind who appeared as monkey-like bipeds who lived in simple tribal structures. Quarlangians attempted to teach them Determination but it proved too much for the Neanderthals, who instead used it to make the first Gods.
Neanderthals were widespread on the surface, although not dense in population. They were allowed in Quarlangia itself, but were just generally confused by much of it. Xocanth used them as sacrifices for their gods, as well.