Suspected recycled Sims and backstory alternatives?

I was looking at a thread about Morgan Fyres' resemblance to Elle DeVampiro, and it was old so I wanted to ask here: anyone have cool backstories about Sims who resemble other Sims and/or might be recycled clones of them?

I have Wolfgang Munch and Diego Lobo being clones (and a fun backstory of an affair between Mila and Diego which resulted in Wolfgang), and also, I see an altered Hugo Villareal in Simeon Silversweater. No story came to mind on that one, though, just thought they looked suspiciously similar.

I don't consider it lazy that some Sims are used as bases for others...it makes the game more interesting.

Any other resemblances anyone has taken note of? Have you worked stories up around it?