[@Expendable] I figured the majority of the vampires would be antagonists if they're older. There's so much other stuff you could do though if you wanted to be 'guy in the van' cause it's usually followed with 'down by the river/lake/ocean'. A creature from the Black Lagoon type guy would be dope, could be a Bruce Banner/Hulk type of transformation thing maybe. Or maybe a banshee that happens to also be a podcaster with a following of thirty-two hundred stationed in a van. Possibly a skinwalker that wandered up to an abandoned van in the woods and made it his temporary shelter. 

I also don't think anyone really has ties to the Gothic Museum, the Mountaineer Newspaper, or any of the major industrial complexes in Darkwater. 

EDIT: I just realized you already had the nurse/witch LOL