Nico is said to have black hair that always looks like he just got out of bed (messy and shaggy), olive skin. By The Battle of the Labyrinth, his skin has paled to white, and he takes to wearing black clothing with skeletal designs, a Stygian Iron sword and a silver skull ring (by the end of the book). By the time he meets Hazel Levesque, she describes his fingers as ghostly white, like their father's. It was stated by Percy that Nico has his mother's eyes, but it has also been said that he has the wild glint of a madman too, just like his father.