Well, now there's a special site that will give you those answers: myheritage.com
Upload a picture of yourself, preferably one of you facing forward and bam! They provide you a list of celebrities your face resembles. I came up with some WEIRD results, like Eva Mendes (I wish I looked like her), Zhang Ziyi, Julie Andrews (Huh?!), Rachel Bilson, Vin Diesel (oh god!), Clive Owen and apparently I resemble Uday Hussein...
P.S. Haha, I've uploaded other people's faces (photos I happened to have on my computer) and this is what I got:
Jez = Oprah, Brandy, Heather Locklear
Mel = Gong Li, Lucy Liu, Diane Keaton (?!), Margaret Cho, Hilary Duff (haha!)
Bhupi = Colin Farrell (HA!), Jay Chou (HAHA!), BoA (HAHAHAH!!!!!!!), Winona Ryder, Albert Einstein
Dev = Alyson Hannigan, Anita Mui
Megan = Maggie Cheung, Mariah Carey, Beyonce (!), Keira Knightley
Nam = Aaliyah, Michelle Wie, Yoko Ono, Roseanne Barr (WTF)
Andru = Gong Li, Helena Bonham Carter, Truman Capote, Elisha Cutbert *hot!
Kathy = Chow Yun Fat, Kate Winslet, Namie Amuro (ooooh!), Kristin Kreuk
Iljya = Rachel McAdams, Jennifer Love Hewitt, Kristin Davis, Cameron Diaz, Prince Harry, Renee Zellwegger, Liza Minelli
Minh = Son Ye-Jin, Ashely Olsen, BoA, Eva Longoria, Chloe Sevigny
Sarah = Emmy Rossum, Jet Li, Kylie Minogue, Whitney Houston
Vicki = Peter Shilton, Katie Holmes
Alex = Jane Goodall, Maria Sharapova (surprise), Alicia Keys, Anne Frank, Brad Pitt, Bob Marley (I totally see his resemblence to Bob Marley, HAHA!)