Percy Jackson
Hades: Hades, the lord of the underworld, has mixed feelings about Percy. Percy previously accuses him of stealing Zeus' Master Bolt when it was in fact Luke who stole it. Later however, he returns to Hades his Helm of Darkness and clears his name of all charges pressed against him. In The Last Olympian, Hades is shown assisting Percy during the war, even talking with his son, Nico, who also has a decent relationship with Percy, afterwards. When mentioned by Percy during his decision of rejecting immortality, Hades is shown casually addressing him, with none of the malice that he normally shows throughout the series.