Percy Jackson is a 17-year-old demigod son of Poseidon from Camp Half-Blood. He can breathe underwater, heal his wounds with water, talk to horses, and manipulate water. He's Caucasian with tan skin, a toned abdomen, muscular arms,dark hair, and sea-green eyes.

Percy is determined, loyal, brave, witty, funny, skilled, stubborn, intelligent, resourceful, protective, confident, caring, adventurous, persistent, sarcastic, and a smartass. He’s infamous for being Olympus’ hero twice. He’s bisexual.