Fascinated with the paranormal from an early age, ABBY YATES dedicated her life to studying ghosts. Along with her friend ERIN GILBERT, Abby wrote the book "GHOSTS FROM OUR PAST" which posited hard science theories on how ghosts are created, where they may come from and how to disrupt the psychokinetic energy that forms them.
Abby identifies with her supernatural studies so much she gets jealous when others know as much or more than she does; her first encounter with both JILLIAN HOLTZMANN and, later, the original GHOSTBUSTERS put this jealousy on full display. However, once she gets used to new playmates, she gets excited about the chance to colaborate and pool knowledge.