Wolverine [Marvel Comics] is the mysterious loner type of Four, who has a romantic heart hidden DEEP under the tough, rugged, sarcastic, angry, and defensive exterior. He's misunderstood, and was originally a mercenary. Tries to control his inner rage and blood urge. Not a team player, he was forced into the X-Men and became a leader due to his immense popularity from readers. An exception to the rule, no one could have predicted how he'd become a superstar in comicdom early on in his career.