"Let me give you the job description. Me, Dark-Hunter. You, Daimon. I hit. You bleed. I kill. You die."
Zarek was born the unwanted son of a Greek slave and a Roman senator. Moments after his birth, his mother gave him to a servant with orders to kill the infant. The servant took mercy on the child and took him to his father who had no more use for the baby than his mother had so Zarek became the whipping boy of a noble Roman family.
No one knows how he died or why he traded his soul- he keeps it as a well-guarded secret. He trusts no one. He seldom interacts with other Dark-Hunters and when he does, it is always grudgingly and with the utmost disdain for them.
Because of his steadfast denial to follow any orders (even those of Artemis) and his lack of regard for anyone other than himself, he is kept in isolation in Alaska where his activity is seriously limited and closely monitored. There are many who fear he will one day unleash his powers against the humans as well as the Daimons.