The Rule of Thoughts discussion

Do you think Kaine is a flat or round character? (A flat character has little traits, and a round one has a lot.) He's kind of mysterious, so I can't really decide. Also, do you think he is dynamic? (A dynamic character is one who changes.) I think he is sort of the same so far. (Haven't finished). Also, one of the big things is that Michael doesn't display a lot of traits, only the classic "hero" traits. That kind of sucks. What's your opinion?