Hesken was a Terran Dominion scientist working at Garxxax Base on the planet Garxxax. He was nervy and frantic, and was viewed as cowardly by Dr. Callins. When the base's biospheres went offline, Heskens thought Security Chief Illyana Jorres was overreacting, and it was a communications issue. When confronted with the destruction of biosphere three, he though it could be a myriad of freak occurrences. Heskens did not report to the lobby when the scientists were gathering for evacuation, so Dannion Kortter set out to check his dorm. However, by the team he reached his dorm, the zerg that had landed on the planet had already surrounded the scientists, and killed them all.