Try Face Double on My Heritage. It can be fun. Or at least interesting. Unfortunately, you only get celeb matches, though, and those are ethnically a bit limited in their database, which is apparently biased in favor of English-speakers?
Anyway, I did this a long while back. I got Johnny Depp, Kate Bush, and Ingrid Betancourt. I don't look exactly like any of them - nothing even close to the miracle cure/Duval doppelganger match. But I see why the system chose them - general coloring and features, bone structure (especially Depp). Apparently, Depp's mother and Bush's father are distantly related to some of mine. Betancourt was the least-matchy, I thought. But, her family and some of mine have inhabited the same tiny little area in France with a particularly well-documented genealogy for over 1,000 years. So, even that one makes some sense. Because, DNA. And Talking Monkeys. And History.