I watched the first season and about half of the second (when it aired on TV in my country), but then I just kind of stopped. So I do know who you mean. I mean, I don't really have a preference (for any character, anyway), so I'll be fine with whoever they cast, as long as he does a good job at portraying the character (and preferably matches their appearance as well) and yes to the NO WHITEWASHING plz! But I don't think we have to worry about whitewashing with this series, I'm sure they'll try to follow the books in that regard as much as they can (at least that was the impression they gave so far, I guess).