Because you like Blaine Anderson in Glee

After surviving a CIA mission that was supposed to kill him, ex-military man John Reese bets it all on a chance to redeem himself. See them in Person of Interest.

Judge Dredd is less a man and more a living manifestation of justice. See them in Dredd.

Stuck somewhere between life and death, Talion is motivated by one thing only: vengeance. See them in Middle-earth: Shadow of Mordor.

Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.

Pro: Johan Liebert is handsome and charming. Con: he's also a sociopathic killer. See them in Monster (TV Show).

Did he ever tell you the definition of insanity? Just wait, and this psychopath will do just that. See them in Far Cry 3.