Percy Jackson- is the son of Poseidon, God of the Sea, Earthshaker, Stormbringer, and Father of Horses. Percy is 12 years old and has dyslexia and ADHD. He has black hair and green eyes. Percy has been kicked out of 6 schools in 6 years. His best friend is Grover Underwood. His mother's name is Sally Jackson who he describes as the best person in the whole world. His step-father, Gabe Ugliano, is the worst smelling piece of garbage Percy has ever met. Percy is very loyal and will do anything he can to help his friends. He also has amazing water powers and is a very strong demigod.
Grover Underwood- is a satyr. He is the protector of Percy. Percy is his second chance because of an event that happened 5 years earlier that included one demigod (Thailia Grace) being turned into a pine tree while two others (Annabeth Chase and Luke Castellan) made it safely to Camp Half-Blood. Grover completes a quest with Percy (and Annabeth) and gains his searchers license to search for the lost god, Pan. Grover appears to be weak but is actually very brave and determined. He looks like he has been held back a few grades. He also loves to eat tin cans and cheese enchiladas.
Annabeth Chase- is a daughter of Athena, goddess of wisom and battle strategy. Annabeth is 12 years old, but has been at Camp Half-Blood longer than almost anyone. Annabeth's father never wanted her. He married when Annabeth was 5 and Annabeth's stepmother never liked Annabeth. Annabeth took the hint that she wasn't wanted when she was 7 and ran away from home and made her way to camp, with the assisstance of Thalia, Luke, and Grover. She is very smart, appears to not like Percy very much but then becomes friends with him. He tells her that she shouldn't give up on her family and she takes his advice by trying to live with her family again. Annabeth has curly blonde hair, gray eyes, dyslexia, and ADHD; and is athletic, tan, and very good at strategizing.
Luke Castellan- is a son of Hermes, god of travelors, thieves and messenger of the Gods. Luke is 19 and described as having sandy hair, blue eyes, a mischievous smile, and a scar from a dragon. He comes off as friendly, but turns out to be the thief who stole the lightning bolt and helm of darkness. He hates the gods of Olympus and feels ignored by them. He is a servant of Kronos. Luke was the best swordsman at camp, until Percy came along.