Full name: Perseus “Percy” Jackson Godly parent: Poseidon (god of the sea) Personality: Sarcastic, loyal to a fault, impulsive, and brave. He’s quick with dry humor and one-liners, struggles with authority and feeling like an outsider (thanks to ADHD and dyslexia), but is fiercely protective of the people he loves. His fatal flaw is excessive personal loyalty—he’ll risk everything for friends and family. Underneath the attitude he’s kind-hearted and has a strong sense of justice. Appearance: Medium-length curly messy brown hair, blue eyes, and a lean, athletic build. He typically wears casual modern clothes (jeans, T-shirts, Camp Half-Blood orange T-shirt once at camp) and carries the pen-sword Riptide. He is the newest to camp halfblood.

Full name: Grover Underwood Species: Satyr Personality: Kind-hearted, empathetic, loyal, and often anxious or nervous (he stress-eats tin cans). He’s a peacemaker who tries to keep the group together, deeply connected to nature, and braver than he gives himself credit for—especially when protecting his friends. He can be timid at first but stands firm when it counts. Appearance: A young-looking South Asian teen (satyrs age slower; he’s actually in his 20s) with dark curly hair, brown eyes, and a gentle expression. He wears human clothes to hide his goat legs and horns (often a hat or cap), and his horns become more visible as the series progresses.

Full name: Annabeth Chase Godly parent: Athena (goddess of wisdom and strategy) Personality: Intelligent, strategic, proud, stubborn, and highly analytical. She’s a natural planner who is often several steps ahead, confident in her abilities (sometimes to the point of hubris), and takes training and quests very seriously. She can come across as blunt or cold at first but is deeply loyal and brave once she trusts someone. Appearance A Black girl with dark skin, gray eyes, and her hair often in box braids. She’s athletic and usually dressed practically for combat or camp life, frequently wearing her New York Yankees baseball cap (which grants invisibility).

Full name: Luke Castellan Godly parent: Hermes (god of travelers, thieves, and messengers) Personality: Charismatic, charming, and initially protective/mentor-like toward younger campers. Underneath, he carries deep resentment toward the gods for their neglect of demigods, which makes him bitter, manipulative, and ultimately rebellious. He’s complex—capable of genuine care for people like Annabeth while pursuing darker goals. Appearance: A slightly older teen with short dark curly hair, brown eyes, and a prominent scar running down one side of his face. He has a confident, approachable presence and typically wears camp or casual clothes.

Full name: Chiron (alias: Mr. Brunner) Godly parent: Kronos (the Titan; his mother is the nymph Philyra) Personality: Wise, patient, fatherly, and highly intelligent. He is a dedicated mentor and activities director who cares deeply for the campers, offering guidance with calm authority and quiet humor. He is honorable and protective of demigods while remaining realistic about the dangers they face. Appearance An older Black man with graying/white hair, a beard, and a dignified presence. In human disguise he uses a wheelchair (as Mr. Brunner). In true form he is a centaur with a brown horse body; his left hind leg has a brace from an old war injury. He often wears formal or tweed-style clothing on his human upper half.

Full name: Clarisse La Rue Godly parent: Ares (god of war) Personality: Aggressive, hot-tempered, arrogant, and competitive. She’s a bully toward newcomers (especially Percy) and values strength and glory, driven by a strong need for her father’s approval. Beneath the tough exterior she is loyal to her cabin and the camp, and later shows more maturity, leadership, and a capacity for respect toward those who prove themselves. Appearance: A mixed-race teen with long curly brown hair, a strong athletic build, and an intense expression. She often appears ready for a fight and is typically in Camp Half-Blood gear or practical combat clothing.