Watari

Watari is a character from the Death Note universe. He first appears in a long trench coat and oversized hat to hide his identity. He speaks on behalf of L Lawliet, and is the only person who knows his true name. He is founder of the Wammy's House, an orphange for talented children. His trune name is Mr. Quillish Wammy. He was killed by Rem under Light's plan, alongside L. Before passing, he hit an emergency button that would delete all of L's info.