The 11 Scariest Lady Villains: 'Game of Thrones,' 'Sopranos,' more
Are these the witchiest women in television history?
8. Dark Willow, "Buffy the Vampire Slayer"
Best worst moment: Flaying Warren Mears alive. Worst of all? She didn't even kill the weenie.
Why she was so bad it was good: While Dark Willow went too far (on the spectrum of bad behaviors, flaying is right up there), this evil spin was an epic transformation for the previously mousy, lovable witch. While we'd seen glimmers of this side of Willow as she dabbled in the dark arts, they fully blossomed with her grief and rage over the death of her girlfriend Tara, giving her emotional arc gut-wrenching heft. It also didn't hurt that Willow was physically transformed into a veiny, black-eyed, black-haired vigilante who is only returned to the right path when she feels the pain there is in the world -- and her old friend Xander refuses to leave her side, even as she tries to blow everything up. While it's not truly the end of Dark Willow (she also pops up on "Angel"), her story of limitless anger and grief fired up some of the final seasons of "Buffy."
-Liane Bonin Starr
20th Century Fox Television