Zebel was born in Los Angeles, to Marten and Julia Donn. he was named after a family friend, who was, unknown to them, a former PIB agent. As a kid he was always interested in different myths and the paranormal. He grew up generally without any friends, mostly because they laughed at his infatuation with the paranormal, But at age 14, when he was walking home from a late movie(they had a marathon on those old ghost movies), he saw a lycanthrope wandering in the streets. When he got home he told his parents, who naturally didn't believe him, but before he went to sleep, his grandfather came in and explained it to him. He also told him about the PIB. So the next day, he went off on his own, and eventually found the PIB HQ, where he was reqruited .
can detect the paranormal
His grandfather gave him a necklace that is enchanted, so he cannot be seen by the paranormal