The werewolf could actually be kinda cool if done right
like.. A villager that is just a villager during the day, but has a chance to change into a werewolf at night. When it changes it can change other villagers that it can reach.
Zombies don't go after werewolves in their were form, but the weres are hostile to the player and to zombies.
would need to come up with the issue with them besides basic player hostility.. If they bite tamed wolves/dogs they could become untamed or hostile to the player.
Maybe drops like "meaty bones" that would help tame regular wolves, and maybe the "original were" would even drop an already tame wolf somehow.. (or maybe become one instead of dying?)
They could be willing to "roam" at night as weres, and have a radar for the next village over.
But have a very low chance of a were in the village to begin with. It would become more of a "problem" as the game progressed as the issue spreads through villages.
Villagers could be cured.
Just my thoughts when I first saw it.