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 Beschreibung 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 oder unusual about the way Draco oder Tom look, so there's no reason for it to be odd for your uncle to look like him.