Deadpool

Deadpool is a mercenary from Marvel comics who is not really what you'd call a hero in the traditional sense of the word but his wacky sense of humor and outlandish adventures have made him a popular protagonist in his own series - although he is motivated by money rather than morals and is as likely to be committing a crime as he is to be doing heroics he is regarded as a more morally neutral character these days than a true villain or hero.