All about one of my characters: Rook (Appearance)

Dark and brooding. Mysterious and wise. Shy around strangers and bold around enemies. Faceless, amoral, devoted and cruel. Rook the Cloaked.
According to wikipedia, an anti-hero is a protagonist "who is lacking the traditional heroic attributes and qualities, and instead possesses character traits that are antithetical to heroism." Rook once smiled as he thought about breaking someone's neck, pinned a man against a wall and threatened to kill him if he didn't act more maturely, beat up an innocent man because he didn't like what he was saying, and killed his best friend to save himself. Yet he is a good guy who seeks the destruction of the antagonists and the safety of the innocent.
In the story, Rook needs the most forgiveness and is the one who seeks it the most through the destruction of evil. It is possible that he cannot help but be sinister and cruel to some even when he is trying to help others. One possibility is that he only fights for good to further his own agenda. Very little information is given on his motivations in Book 1 other than the fact that he strongly dislikes demons.
There is a lot of mystery surrounding him and his past. In the beginning, when he has no menory of who he really is, he and Anar are journeying around the country and Rook is slowly realling bits and pieces of his life. It is not known how he lost his memory although he can regain it by looking at things or visiting places that have something to do with his past. For example, if he had a favorite toy when he was a boy he could recall things he had done with the toy if he ever saw it again. I wanted the reader to want to know more about this man and what lurks behind his moving mask. His backstory is slowly revealed over the course of the series and it is the desire to know more about Rook that I hope will keep the reader reading. Although the full details about his past are still unknown by the end of book 1, we can trust him a bit more by then.