List of characters in the Camp Half-Blood series
Zeus/Jupiter - The King of the Gods, God of the Sky, Zeus is brother to Poseidon and Hades, uncle to Percy, father of Thalia, son of Kronos. His Roman counterpart is Jupiter, brother to Pluto and Neptune, and father to Jason. He is a principal character in the first book but is a minor one in the next four. His cabin is Cabin 1. Poseidon calls Zeus dramatic, saying that he might do better as the God of the Theater. His symbol of power is his Master Bolt. In The Lost Hero, Zeus (under the influence of Khione) forbids contact between gods and mortals and closes down Olympus. Despite this, Zeus indirectly aids the demigods several times on their quest, such as answering his son's prayer for aid against Enceladus.