When Zach was very young, he witnessed an exorcism by church monster-hunters of a neighbor of his. However, the threat of demons did cause his father to leave him and his mother on their own. Raised by his now single mother, Zach was a child enamored with God as an all-loving savior to those who needed help.

After he finished school he went to college for a bachelors in theology, as well as some introductory law classes.

Post graduation, Zach joined the clergy with the intent of researching ways to fight evil directly. Though demon-hunting is not a common profession, due to his history and lack of skill in the more regular duties of priesthood, he was allowed to pick up the job.

Now aged 31, Zach has been assigned a new hunting partner, Father John.