The criminal known as Themog plied his trade within the confines of Corestrike, a town located on the planet of Chrona. Once a member of the Corellian Security Force, Themog's career ended in shame. He suffered an injury when attempting to extort a suspect for a larger bribe in exchange for turning a blind eye, leading to his forced retirement.
After establishing himself on Chrona, Themog became deeply involved in the criminal activities that troubled Corestrike. He kept the assassin droid named BG-12 in his possession, and shared a romantic connection with Lady Moira Kruger. This relationship provided him with a safe haven at the Grinder Dance Hall and enabled him to influence her decisions on the Magistrate Council.