Quillsh Wammy, better known by his alias Watari, is a key supporting character in the anime series Death Note. He serves as L's handler, assistant, and confidant, acting as the intermediary between L and law enforcement agencies. A highly intelligent and resourceful man, Watari is also the founder of Wammy's House, an orphanage for gifted children. His calm demeanor and unwavering loyalty make him an essential ally to L in the pursuit of Kira.