Badass Babes of TV and Movies: From 'Brave' to 'Game of Thrones'

Rambunctious role: Is Maggie's Tara Knowles poised to take over as the scariest woman on TV on "Sons of Anarchy"? We can't wait to find out.

Rough Resume: Siff gave a memorable turn as Rachel Ben Natan on "Nip/Tuck," then really made a name for herself as a woman who captured Don Draper's heart (for awhile) on "Mad Men."