August 9, 2008
[On playing “The Joker” in The Dark Knight] The Joker, so far, is definitely the most fun I’ve had with any character. He’s just out of control — no empathy, he’s a sociopath, uh, a psychotic, mass-murdering clown. And, uh, I’m just thoroughly, thoroughly enjoying it. It’s just exceeded any expectations I had of what the experience would be like.
August 8, 2008
Batman: What did you do?
The Joker: I took Gotham’s white knight, and brought him down to our level. It wasn’t hard. Y’see, madness, as you know, is like gravity. All it takes is a little…push.
Lt. James Gordon: Because he’s the hero Gotham deserves, but not the one it needs right now…and so we’ll hunt him, because he can take it. Because he’s not a hero. He’s a silent guardian, a watchful protector…a dark knight.
The Joker: [to Batman] We really should stop fighting, we’ll miss the fireworks!