Zoe Barlow grew up as a normal kid, yet another who didn't fit
the pattern. Her parents are both alive and well, as far as she
knows. She never felt like she fit in, so as soon as she
graduated from high school, she packed a bag, and left home,
back packing across the U.S.
She ran into Andy Gallagher, literally, on a street. And he was
shocked to find he bounced right off her. She was another one
of the special children the demon alluded to, her special ability
being forcefields around her. Came in handy during her high
school days, when kids would throw things at her. The two hit it
off right away, forming a kinship. So when Andy was called by
Dean to help with a situation, he brought Zoe along, and Zoe
willingly went.
She's quiet, timid in most respects, but has finally found
something she can be a part of.