A jovial traveller with a knack for chatter, the Biologist is a researcher on a quest to document every creature, whether fauna or flora, in the Wildlands. His dangerous undertakings have resulted in the loss of limbs, which were replaced with prostheses.

Bio's mount Ardent accompanies him on his travels, giving him a respite from walking.

The collected information from Bio's research is compiled into his bestiary: a compendium which is promising to become the largest, most comprehensible source on the Wildlands' inhabitants to date.