There’s this site called MyHeritage which lets you upload a photo of yourself, and it will then generate a list of celebrities who are supposedly close matches to your face. I decided to give it a shot, but the results are less than convincing:
The celebrities around my picture are the Top 8 celebrities who the system matched my face with. Note that there is 1 Korean, 1 Malaysian, 4 black guys, 1 white guy, and a hot chick.
This system is obviously still in beta, although it was interesting to play with. I tried a few different photos, each yielding a different set of celebrities who are supposed to look like me. For some reason Terrance Howard almost always showed up. Other celebrities I saw were Tony Blair, Xiang Ziyi, Snoop Dogg, and Judi Dench.