I'm not sure who "Drako" is, but it's not weird (or uncommon) for people to look like other people. DraCo doesn't exactly have any odd features -- blonde hair, blue/grey eyes, pointed face. That's a pretty common description of a lot of people.
And Tom Felton isn't exactly abnormal looking either: slim, tall(ish), brown hair, blue eyes, pale skin. There's nothing odd au unusual about the way Draco au Tom look, so there's no reason for it to be odd for your uncle to look like him.