Obito Uchiha is the main antagonist of the popular (but shark jumpy) manga, Naruto.
Before his face was revealed he called himself Tobi, then Madara Uchiha, and now then he said he had No Name at all. He claims he's nobody, and he doesn't want to be anybody. And his only wish is the completion of his Moon Eye Plan.
Role in UltimaEdit
While not exactly a team player for most of the Org, he's still the most manipulative, sadistic and dangerous shinobi in his world, he'll risk even his own teammates to get what he wants.
And this sadistic streak is what made him a member of the Inner Circle.