You know, we sometimes think ancient people were somehow primitive and delusional to have their mythological heroes...and completely gloss over the fact that we most certainly have our own. Here's a few:
Superman - in a study a few years back he was more recognizable globally than Jesus.
Sherlock Holmes - written, rewritten, you name it. Everyone loves to play with the great detective.
Nikola Tesla - who's even a real person! The original mad scientist. And somebody else everyone loves to play with. Hero or villain? Depends on the writer.
Let's have some more?