Wolverine

Wolverine is a character from the X-Men comic. He's part-man, part-animal, in a long tradition of characters such as, Dr. Jeckyl and Mr. Hyde, Tarzan, The Wolfman, etc, trapped in a struggle between bestial impulses and civil order. As a superhero working within a team this makes for an interesting social dynamic. He must work with others in an organization, while at the same time he's at his best when he goes berserk and attacks the enemy. He's basically a murderous psychopath barely under control. In a lot of ways so is James Bond, he just looks smoother, nobler and more refined. I think these characters allow us to cut-loose of our civilized selves in a safe and harmless way. In a story these characters are very appealing but would be awful people to know in real life.