The L.A. Times chats with Dark Knight director Christopher Nolan about the villains in the movie:
“Harvey Dent is a tragic figure, and his story is the backbone of this film,” says Christopher Nolan, the director of the acclaimed franchise-rejuvenating 2005 film “Batman Begins,” who returns with Christian Bale again playing the caped crusader. “The Joker, he sort of cuts through the film — he’s got no story arc, he’s just a force of nature tearing through. Heath has given an amazing performance in the role, it’s really extraordinary.”
Ledger and Eckhart will be joined in “Dark Knight” by “Batman” veteran Cillian Murphy, who reprises his role as the Scarecrow.
The article adds that fans shouldn’t expect a lot of laughs in the film.

January 16th, 2008 at 8:54 am
im glad to hear cillian murphy is back. having an older villain kind of allows for the idea that a looseknit community of villains is starting to develop in Gotham, and gives it a bit more of a Long Halloween vibe, which is def. the way to go.
January 16th, 2008 at 9:23 am
I’m guessing the end of this film will feature the first appearance of Two-Face. I’m really looking forward to this.
January 22nd, 2008 at 10:50 pm
Today I learned that Heath is no longer with us. The sadness of this has impacted me greatly. He was young, great as an actor, and full of potential. Sadly, the only thing that we, the general public, will have of him to remember him by is his films. What a treasure they were and he was a joy to watch. May God watch over him and bring some peace to his close friends and family. God bless you Heath