Frosstbyte

The fact that she already failed once as Catwoman aside, Halle Berry is a terrible actress. The only time I have ever found her remotely believable was in Bulworth, and that's not really saying a whole lot. She (and Bryan Singer and Brett Ratner) ruined Storm, and Jinx was just an awfully conceived and executed Bond girl, which I think about covers her experience in action movies. I will never understand why she won Best Actress, and that's probably a topic for another thread anyway.

Megan Fox has the perfect look, but i have little confidence in her ability to bring to the role what Nolan's characters have required. Not that Transformers was really indicative of anyone's skill as an actor (we are talking Michael Bay here), but unless she comes out in something else that demonstrates range other than "Hot chick in peril" I don't think there's much promise.

Scarlett suffers from a similar problem as Fox, and has a very innocent look, which I'm not sure is conducive to playing Catwoman. She'd make a much better Harley Quinn, if she were to be anything. She has shown some good range in Ghost World, Lost in Translation or Scoop, but hard to say and she did work with Nolan to some effect in The Prestige, so she's got that going for her. I don't know much about her upcoming film "The Spirit" or her character, but that might give some insight.

Someone mentioned Alexis Bledel, who is another interesting choice, but, again, not a whole lot of range. If they would be wiling to look a bit older, though, I quite like Lauren Graham (who played her mother on Gillmore Girls).

First person I think of when you say "Junkie Hot" is Gina Gershon, but I think that's probably a bad idea for a lot of reasons. Haha.