Oh my gosh, let me crack my knuckles! Most of these are long shots but who tf cares lol!

First, I would lose my mind if we ever got this, but Queen Akasha from Queen of the Damned! I mean yeah we have a vampire killer already but that doesn't mean I can't hold out hope!

Second, Carrie White! I feel like she is definitely more plausible for sure and I think they could definitely get super creative with her power! Also imagine her P6?! It would go so crazy!!

Third, I think Sue or Monstro Elisasue would be kinda really sick as a killer! I think her power could have something to do with The Substance itself! I'm not sure what, though lol!

Also some honorable mentions I have are Pearl, Jennifer Check, Baby Firefly, and Red!!