I know it's popular to say this because she's the woman of the moment, but Halle Berry. Not only does she have obvious audience appeal and star quality, but she's a damn good actress too.
“I was very good at sitting. But I just read so much research about how horrible sitting is for you. It's like, it's really bad. It's like Paula-Deen-glazed-bacon-doughnut bad. So I now move around as much as possible.”