Nea Walker, also referred to as "The Fourteenth", "The Pianist" and "The Musician", was a traitor and disowned member of the Noah Family. He is the younger brother of Mana Walker and the adopted uncle of Allen Walker. He was the only individual, besides the 9th of the Noah Family Road Kamelot and the Millennium Earl, who is able to control Noah's Ark.
Initially, Nea simply appeared to Allen as a shadowed figure with no distinct facial features wearing a large overcoat. Once, he appeared briefly to the Earl in his mind as a young man with unruly, darkly-colored hair.
In his Noah form, Nea appears as a young man with short, unruly dark hair with a line of stigmata on his forehead, wearing a dress shirt, vest, a simple cravat, and an overcoat and white gloves. His facial features have been noted by both Wisely#1 and Allen#2 as making him strikingly similar in appearance to Tyki Mikk, though Tyki has more mature facial features and Nea's hair is shorter and he lacks Tyki's facial mole.