Percy Jackson is a 17-year-old boy who discovers that he's a demigod—the son of Poseidon, the Greek god of the sea. Percy leaves his normal life behind to train at Camp Half-Blood. Throughout the series, he goes on dangerous quests to protect his friends, uncover the truth about his family, and prevent disasters that could affect both the mortal and divine worlds. Traits: Brave and fearless Loyal to his friends and family Protective of the people he cares about Compassionate and kind Sarcastic with a quick sense of humor Impulsive and acts on instinct Curious and determined Strong-willed and resilient Honest and trustworthy Selfless, often putting others before himself Naturally athletic and resourceful Sometimes stubborn and rebellious A strong leader, even when he doesn't seek the role Empathetic, especially toward outsiders and those who feel misunderstood Never gives up, even when the odds are against him

Annabeth Chase is a brilliant demigod and the daughter of Athena, the Greek goddess of wisdom and strategy. Having lived at Camp Half-Blood for years, she's one of its most experienced campers. Annabeth is known for her intelligence, confidence, and ability to think several steps ahead.

Nico di Angelo is a powerful demigod and the son of Hades, the Greek god of the Underworld. Introduced as a young camper with a love for mythology games, Nico's life changes dramatically after a devastating loss. Over time, he becomes one of the most powerful—and mysterious—demigods. Though he often prefers to work alone, he has a deep sense of loyalty and repeatedly risks everything to help his friends when it matters most. Traits: Quiet and reserved Mysterious and hard to read Fiercely loyal to those he trusts Brave, even when afraid Independent and self-sufficient Emotionally guarded Intelligent and perceptive Resilient after hardship Compassionate beneath his tough exterior Protective of the people he loves Determined and persistent Powerful and intimidating in battle Thoughtful and introspective Can be lonely and withdrawn Struggles to trust others but values genuine friendships

Clarisse La Rue is a fierce demigod and the daughter of Ares, the Greek god of war. As one of the strongest campers at Camp Half-Blood, she's known for her toughness, competitive spirit, and exceptional combat skills. Clarisse often comes across as intimidating and aggressive, but beneath her rough exterior is someone who values honor, loyalty, and earning respect through actions rather than words.