I started thinking recently, what with Halloween coming up, right before NaNoWriMo, how would Furry universes use the traditional Hollywood movie monsters?
Zombies are kind of a no-brainer, they’re just mindless flesh-eating shambling corpses.
Werewolves might be a tad difficult to implement. Do they turn into wolves? Feral versions of the base species? “Wolfmen” wouldn’t really work I think unless they’re a lot more muscled.
Vampires I can see as sort of an atavism to a time when carnivorous anthros preyed on herbivorous anthros. Possibly for a pseudo-science bent they could have a condition that requires them to consume anthropomorphic animal protein, blood drinking simply a stealthier alternative to eating flesh.
A multi-species Frankenstein’s monster might be interesting too.