My Heritage.com has a cool tool in which you upload a headshot of yourself and it tells you what celebrities you most look like. James Cameron was my closest match followed by Haley Joel Osmond. Apparenlty I could be either in my 60's or in my 20's. My closest female match was Paz Vega who I don't really know much about, but know that if I looked like her I would spend a lot more time in my own company.
You have to establish a my heritage account to use the tool, but it's realitvely painless.