Jason Todd (Batman: Under the Red Hood)

Jason Todd was a kid who got in trouble with the law, Bruce Wayne found him steeling the wheels from the bat mobile. Bruce took him to the bat cave to become the second robin. during a fight with the joker Jason was kidnapped. The joker beat him with a crowbar and blew up the building that Jason was being held in seconds before the batman showed up. Ra's al Ghul feeling guilty of hiring the Joker for a distraction took the dead body of Jason to the Lazarus Pit to bring him back from the dead. The effects of the pit altered Jason's mind. He takes up the alias of the Red Hood, the past alias of the Joker. Now as the Red Hood, Jason takes a more aggressive type of crime fighting.