Sarah Michelle Geller, star of "Buffy the Vampire Slayer" and most recently "The Ringer" on The CW Network, has lived a fairly low-key Hollywood life. But even so, she's been on our televisions and in the movies ever since. She turns 36 today, April 14!

Gellar might not always hit a fashion home-run, but she definitely has her own distinct style. And there's something to be said for a woman whose hair and makeup just about always looks perfect! Whether she was blonde or brunette, promoting a horror flick or one about not-so-great intentions (a movie we're obsessed with, by the way), we're always happy to see what she's up to.

Click through the gallery to see SMG's style transformation!