Depending on which universe you live in, monster hunting can be lucrative business. Or not so lucrative, as the Ghostbusters have discovered from time to time. Monsters are, well, monstrous, and not many people can claim affection for them. So what’s a person to do? Kill them, of course! Some of the hunters we've included on this list work for an organization and/or get paid for their trouble, but most hunt down creatures of the night for revenge, for fun, or for some combination of both.