From PathfinderWiki
Alignment Chaotic neutral
Race/Species Human
Class Ranger 2 / Rogue 2
Gender Male
Homeland Sothis, Osirion

Source: The Trouble with Secrets, pg(s). 9

Thellin is a pit fighter from the Osirian capital of Sothis who had the misfortune of being dominated by the vampire Taylin Harkus in order to serve as her personal bodyguard. An accomplished warrior and archer, it is unknown whether he ever escaped his enslavement beneath the Sandswept Hall.[1][2][3]