All three of those candidates have great and bad characteristics that would make them the Joker. Depp - GOOD - Amazing actor, would just absorb the role, sink into it. BAD - Too famous of a name, probably would outshadow Christan, sorry to say. I think Depp is the best choice is WB wants some big $$$. Weaving - GOOD - Not as well known as Depp, and is great actor, and can jump into the role. (See: V For Vendetta, Matrix, LOTR) BAD - He was in a comic movie already (V) Bettany - GOOD - The least well known out of the three. Great actor, and would be a good Joker. BAD - He just doesn't look lanky enough to me. In the pics I've seen on the boards, he looks kinda big for the Joker. I think these 3 should really be considered by Nolan and WB. If Depp is a candidate, and he wants it, GIVE IT TO HIM. Plus, "Batman II" would be a great title to the movie.