Watari

Watari (ワタリ) is L's assistant, providing logistics to the investigation team. Before the team is formed, he is the only person who has seen L, and the only one capable of contacting L directly. Like L, he represents himself with an Old English "W" on computer screens. On the surface he is Quillsh Wammy (キルシュ・ワイミー Kirushu Waimī), a famous inventor and founder of Wammy's House, an orphanage for gifted children in Winchester. Watari is well trained in espionage and marksmanship. He is voiced by Kiyoshi Kobayashi in the Japanese anime and French Tickner in the English dub. In the film, he is played by Shunji Fujimura.

When drawing the images of Watari in disguise, Obata did not put much thought into the design since Watari's face did not appear. In his rough drafts Ohba originally designed Watari as an elderly man with a single strip of hair. Obata wanted to keep Watari as an elderly man and designed him as one in Chapter 13. Obata believes that elderly characters are more fun to draw than young characters since he could create "weird angles" with their wrinkles, while younger characters may be designed as "attractive, normal, or ugly." Obata likes leather coats, so he had Watari wear one.