since the classic version of joker wouldn't quite cut it in the sequel, maybe nolan should use the batman tas version of him. the revamped series from the late 90's. no red lips and yellow eyes. instead, darker eyes and very dark green-black hair. looks more black then green. also, maybe nolan can aim to make joker look a bit pale, pasty white. almost like a man who hasn't been in the sun very often.