Astrology moves in mysterious ways! Let's examine the case of the so called "doppelgängers". Two people that look alike should typically have nearly identical "big threes" (possibly, the same Sun sign, Moon sign, and Ascendant's sign). Well, not exactly.
Above you may see the man who is the "father" of "Ferrari", the revered luxurious car (on the left) and the German-turkish football player Mesut Ozil (on the right). I think they qualify as genuine doppelgangers (although born almost a whole century apart).