Jim, You might be being a smart-ass, but I'm not sure you're being inclusive enough. Isn't Dracula just doing what he has to do to exist? Can Hannibal Lecter really be a villain when he's just a mentally-ill person?
You mean that the shark portrayed in the Jaws movies that attacked and ate...
vil·lain n. 2. A dramatic or fictional character who is typically at odds with the hero. 4. Something said to be the cause of particular trouble or an evil I would think Bruce (the shark in Jaws) would qualify under both of those defintions.
Jame Gumb a.k.a. Buffalo Bill (I don't really think death is a "villain" in the Seventh Seal. Just an adversary and just a guy doing his job :)) abstain