Nico has a quiet, almost intimating demeanor. He spends most of his time alone, standing in the shadows, but he's awfully friendly and can get along with anyone. 
He's about 5'7, has long, curly black hair that's also a mess. He wears ripped black jeans, doc martens, a grey T-shirt of a band called 'Romanes' and a brown aviator jacket.
He's the son of Hades, has shadow powers and can manipulate the earth. He can also summon skeletons from the ground.