Thor was a miner for the Enclave in the Mariposa military base around the time of the Chosen One but managed to escape the Enclave before they could get their hands on him. One day while on the road his FEV mutation began to kick in turning him into a massive super mutant. He wandered for years until he finally came across Paladin Lantham’s super mutant army and joined him where he fought as a proud soldier until its destruction. Afterwards, he was recruited into the Brotherhood of Steel due to his courageous acts in the battlefield. He became close friends with Scribe Harris, a ghoul, Scribe Cornelius, a deathclaw and Star Paladin Ruff, a human. Eventually, he was sent out to find the synth Conrad along with Cornelius, Ruff, Star Paladin Sierra, Star Paladin Oliver, Scribe Nora and Scribe Neil.

His voice is like a typical super mutant.