Sullivan was a mutant, who worked as a doctor in Front Royal, he killed many of the wounded while he waited to get his hands on Nathan Cawdor. He recieved word from one of the whores acting as a nurse that there was a trap being set up for him. He killed her and tried to escape, but was captured by Nathan's people. He was dragged in chains to face Nathan, forced him to try and escape after announcing that he will end up burying him alive. Nathan later shot and killed him. (Gaia's Demise)

Community content is available under CC-BY-SA unless otherwise noted.