The Punisher

Frank Castle, aka the Punisher, was a marine, until he came home and found his family had been murdered by the Mafia. He then went on a murderous rampage, killing everyone connected to the head of the crime family, then killing the head himself. Now he vows to punish all criminals, aswell as anyone who hurts or takes advantage of the innocent. He carries many, many, many guns, ranging from pistols to rocket launchers, all of which he is very skilled with. He is also very skilled in hand-to-hand combat, being able to defeat a room of enemies with his bare hands. He keeps to himself, mostly only speaking when necessary. He claims to have no emotions, saying that he is not on a quest of vengeance, as revenge is an emotional response, rather he claims to be on a quest to punish criminals, spawning his iconic line, "not vengeance, punishment".