2. Alyson Hannigan as Willow Rosenberg in Buffy the Vampire Slayer
Before she became the best kindergarten teacher ever in How I Met Your Mother, Alyson Hannigan embraced her witchy side on Buffy the Vampire Slayer. Sure, Willow flirted with the dark side in the later seasons of the show but generally she was known for being a powerful yet fundamentally good witch. She was also a wiz with computers. Wouldn’t we give to have her skills!