Celebrity Lookalikes: 10 Sets of Stars That Could Be Mistaken for Twins

If you told us Melinda Clarke (you know, the devious Julie Cooper on "The O.C.") was Emma Stone's mother (or older sister), we would not be shocked. Look at those faces!

It-girl Atlanta de Cadenet Taylor and actress Rachel Bilson share more than a love of high fashion—they practically share the same face! Seriously, it's sometimes difficult to tell them apart at events.