The Punisher (Marvel)

"They laugh at the law. The rich ones who buy it and twist it to their whims. The other ones, who have nothing to lose, who don't care about themselves, or other people. All the ones who think they're above the law, or outside it, or beyond it. They know all the law is good for is to keep good people in line. And they all laugh. They laugh at the law. But they don't laugh at me."

- The Punisher's speech during Return To Big Nothing.

The Punisher is a violent vigilante from Marvel comics and varies from being a dark anti-hero to being an outright protagonist villain depending on the writer and/or story.

Driven by the death of his family, the Punisher hunts down criminals and kills them in brutal ways, and he is also known to settle for intimidation or torture. The Punisher is one of Marvel's more sociopathic and brutal anti-heroes and for this reason and overall the Punisher is a truly neutral character and belongs to the grey zone.