Back to point. I've watched the teaser trailer around twenty times. I like what I saw and heard. I like Heath's "Joker" voice. To me it sounds like a cross between Ceasar Romero's and Jack's Joker with Ledgers Australian accent. What we must remember is that the Joker is a homicidal maniac with a disfigured face. Back in '66, Obviously it would have been prudent to have someone play him as a homicidal maniac. In '89 Jack played a great Joker, but in my opinion, Jack's Joker wasn't the person he should' ve been. Now flash forward to today with Heath Ledger. I believe that Ledger will portray him as the homicidal maniac he should be. Besides pick up, if you don't have it alrerady Batman: The Killing Joke. That is one of the best Batman stories ever. It is also what Nolan is basing his Joker off of.