You've seen Michael Sheen on screen in Underworld and the Twilight ******, as Prime Minister Tony Blair in The Queen, and even during his 2010 stint on 30 Rock. You may also be a fan of his current Showtime hit, Masters of ***, but what's more impressive than his award-winning two-decade long career, you ask? His longtime status as a Total Chick Magnet, of course. Michael's been dating gorgeous, talented women for years and his latest love, comedienne Sarah Silverman, is yet a**ther example of his impressive romantic pursuits. We're dying to k**w, what is it about the actor that has women like Kate Beckinsale and Rachel McAdams wrapped around his finger? Below, our findings.