Treehollow, Silver Sage
Stoker is a clinical phlebotomist and works with Nora and Twitchel to conduct testing on patient blood. He takes the blood with a needle like any good doctor would, but he has three pet leeches that he likes to tease/torment people with. Their names are Archibald, Gwenivere, and Fluffy.
He used to be a groomer but, well, a bat's gotta do what a bat's gotta do.