Hades (Camp Half-Blood)

Hades is one of the thirteen olympians from the Percy Jackson series. At first Hades was a villain, but then it was revealed he hadn't stolen the Lightning Theif, and wasn't as evil as believed. He also helped the demi-gods in the end, and got his own cabin for his children in Camp Half-Blood. He is also the father of Nico di Angelo, Bianca di Angelo, and Hazel Levesque. However in the movie, he was a villain.