Batman: The Dark Knight

[dcowboys311]

Probably Talia al Ghul or The Riddler. Maybe Harley Quinn, Bane, Mad Hatter, or Hush.

 

[Wyvern]

I remember reading Ledger had to open up some dark part of himself to fully bring out his character, and bravo totally for him for doing so. However, he didn't commit suicide. He accidentally OD'd on prescription medication. I really don't think it was because of any character he played.

That maybe true, but think about this:

To prepare for his role as the Joker, Heath Ledger lived alone in a hotel room for a month, formulating the character's psychology, posture and voice (the last one he found most difficult to do). He started a diary, in which he wrote the Joker's thoughts and feelings to guide himself during his performance. He was also given Alan Moore's comic "Batman: The Killing Joke" and "Arkham Asylum: A Serious House on Serious Earth" to read. Ledger also took inspiration from A Clockwork Orange (1971)'s Alex and Sid Vicious.

I don't know you but I know I'll end pretty psycho after that

It's Sir Michael Caine's opinion that Heath Ledger beat the odds and topped Jack Nicholson's Joker from Batman (1989): "Jack was like a clown figure, benign but wicked, maybe a killer old uncle. He could be funny and make you laugh. Heath's gone in a completely different direction to Jack, he's like a really scary psychopath. He's a lovely guy and his Joker is going to be a hell of a revelation in this picture." Caine bases this belief on a scene where the Joker pays a visit to Bruce Wayne's penthouse. He'd never met Ledger before, so when Ledger arrived and performed he gave Caine such a fright he forgot his lines.