MyHeritage scans a picture of your face and then tells you what celebrity you resemble most! I have been told once or twice that I "remind" people of Ms. Barrymore, but never has anyone said I "look" like her.
However, skeptic that I am, I uploaded a picture of me with a different expression on my face from a different angle. My first result? Paul Wittgenstein! My second? Elisha Cuthbert. I'm flattered by the second one, at least, I guess. Coming in at number eight? Danny Devito! Still fun, at least.
UPDATE: With yet another picture, the results included Engelbert Humperdinck and Quincy Jones!