Hursh was a doctor at the Raccoon Hospital. He was one of the only staff in the hospital to survive the initial attacks by swarms of mutant leeches. After warning a small group of civilians that taking refuge in the hospital was a bad idea, Hursh began trying to fix the elevator so they could leave. After restoring power to the elevator, he was attacked by the Leech Man. The leeches left their previous victim, Scott Jones, and attached themselves to Hursh, turning him into the next parasite-covered monstrosity that ran amok through the hospital. When the Leech Man was finally killed in the temperature experiment room, Hursh reverted to his former, human self in death and provided the other survivors with the crucial keycard they needed.