Deadpool
In the comic book universe, Deadpool was mostly considered neutral and sometimes even evil, but near the end of the series he was proved to be a good person. He tried really hard to fight his own psychotic mind behaviour and stop killing people. He got married with a person that cared for him and had a daughter. He made friends with an agent of S.H.I.E.L.D. and by himself destroyed a whole evil army that was trying to kill his family. In the end, on a vacation with his family and friends, Deadpool hugged his daughter as a second earth came crashing down from the sky, presumably killing him and his family and friends, along with many lives on earth, joining up the story with Secret Wars.