Ann Johansson / For the Los Angeles Times
Why we know him: He's acted in numerous indie flicks, is part of the oil billionaire Getty family and plays eldest brother Tommy of the Walker clan on Brothers & Sisters
Can currently be seen on: After images of him and a topless Sienna Miller were circulated around the world, he can be found on just about any entertainment gossip site. Getty, who is still married to his fashion-designer wife (with whom he has four kids), seems to be flaunting his tryst with Jude Law's former fiancee. If it werent for the extramarital affair, Getty would get lost in the shuffle of celebrity-dom.