I've refined my choices:
The Joker: I like Vincent Gallo, but Crispin Glover looks definitely the part and can probably kick ass.
Harley Quinn: Brittany Murphy is bonkers enough, I guess. Though I really like Fairuza Balk. She's already pale so they'd save on make up.
Catwoman: Angelina Jolie. Nobody compares. She's the comic brought to life. Sexy as all hell, long legs, beautiful cat-like eyes, but a scary first date. That's Catwoman to me.
The Penguin: I'm not sure about any of these, but Bob Hodgekins is looking pretty good.
The Mad Hatter: Johnny Depp I KNOW would be amazing, but Martin Short is just too good.
The Riddler: Hands down, Edward Norton. Absolutely no contest.
Mr. Freeze: MALCOVICH!! Kingsley's good though.
Two-Face: Definitely NOT ****ing Cotton Weary from Scream. Guy Pierce is fantastic. His doing Memento with Nolan puts him close before there's even talks about it.
Talia Al Ghul: Kate Beckinsale. Gorgeous, mysterious beauty. Also has done a movie with Bale before, so she's connected already.
Poison Ivy: NONE of you guys' picks have made me happy. I can't think of anybody either though. She needs to be the sexiest thing anybody's ever laid eyes on, a lot of the girls you all picked are pretty or cute but not what's needed. She also needs to be a redhead.
Oh, and NO WRESTLERS FOR BANE. Haven't we learned our lesson? I hate to speak ill of the dead, but that guy sucked and it wasn't just because of the script. No self-respecting human being would break through a wall and say "EXIT!" like that unless they didn't see anything wrong with it. Ugh...that memory won't go away now.
Another thing. Vin Diesel should NEVER, EVER, set foot 100 miles from this movie or any other for that matter. EVER.
And American_Idiot, I disagree. I think Depp could probably pull off the females pretty well too.