Percy Jackson from Rick Riordan books.also:Annabeth Chase,Jason Grace,Piper McLean,Hazel Levesque,Frank Zhang,Leo Valdez. 
Camp Half-Blood.Perseus "Percy" Jackson is the eighteenyearold Greek demigod son of Poseidon and Sally Jackson.He is the main protagonist and narrator of the Percy Jackson and the Olympians series and one of the main characters of The Heroes of Olympus series.He is the former Head Counselor of Poseidon's Cabin at Camp Half-Blood and a former Praetor of the Twelfth legion.