Not to mention they used his roman name(Fair enough tho, Hercules runs off the tongue better than Heracles)
Some of the characters don't exist in the stories
and Hades isn't evil.
And Zeus
Holy shit is he a horny asshole who can't be loyal to his wife for anything.
Even though Hades technically kidnapped Persephone, he still loves her.
In fact, in the Percy Jackson books, he is seen being a DECENT dad to Nico Di Angelo.
That's Zeus
Hades does not have any children in the Greek myths, nor does Poseidon. The only kids Poseidon has are a bunch of Cyclops. And Poseidon doesn't have a wife soooo-
Yeah, Hades is the only one loyal to his wife
and Poseidon just has a kink for nature spirits