Deathstroke

Deathstroke (Slade Wilson) is a supervillain appearing in American comic books published by DC Comics. The character was created by writer Marv Wolfman and artist George Pérez, and debuted in The New Teen Titans #2 (December 1980) as Deathstroke the Terminator. In his comic book appearances, Slade Wilson is depicted as an elite operative in the U.S. Army who gains enhanced physical and mental abilities from an experimental super-soldier serum and becomes the ruthless mercenary Deathstroke.…Wikipedia