Ahaha. Yes. Oh god yes. I have, like, five. At least. Probably more I haven't met yet.
One - My brother, who's older than me by about eleven years. We look almost identical, have similar styles, have many of the same mannerisms.
Two - This guy I knew in high school, Kyle something-or-other. He was older than me by a few years, but I was a spitting image of him, to the point that all his friends shouted "hey, Mini-Kyle!" When they saw me around school.
Three - My friends tell me that there's a first-year at that same high school who looks like a younger version of me. Slightly worried about that school, now there's been at least three of us in a row.
Four - There was a man serving at a supermarket checkout, in Stirling, who looked the same. Same hair, build, facial structure. We laughed a bit, and moved on.
Five - An old internet friend of mine, English girl. We don't look at all similar, but we have a frightening number of mental similarities - we have similar interests, we have the same strengths and weaknesses, we have the same kinds of philosophies, similar thought processes... We've go for months at a time without speaking, no contact whatsoever, and then when we got back in touch, we'd still ended up as psychological mirror-images of each other. Fun stuff.