Not to nitpick too much but the character in question is in fact Ares, not Hades. Ares is one of the sons of Zeus and the god of war (Diana’s half-brother in this movie). Hades is the lord of the underworld, Zeus’ brother which would make him Diana’s uncle.
At one point Ares was even Diana’s grandfather in the comics (makes sense, right?).
adjusts nerd glasses