i do wish 24 would do a better job controlling the spoilers. Between the "next week on 24," cast list at the beginning of the season and other info out there, I feel like most things are spoiled before I see them.Ali Larter from Heroes I think.
No, I 'm positive it's not her, though she has been in a commercial for a new movie coming out.
I think the actress in question is Amy Price-Francis. Be careful with that link, because towards the bottom is an indication as to how long she will be on the show.
Yip, you seem to be right. The first photograph of Amy Price-Francis reminded me of Ali Larter, and Ali Larter doesn't have anything in her IMDB record, that alludes to a role in 24.