Wammy's House In Death Note

Wammy's House is one of several orphanages established by Quillsh Wammy. It was founded in Winchester, England, and was initially designed to be a training facility for especially gifted children. The most accomplished of these children was L Lawliet. After L's success as a detective, the goal of Wammy's House became to produce a successor to L.

Watari 

Watari 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. He is also a fatherly figure to L. On the surface, he is Quillish Wammy, a famous inventor and founder of Wammy's House, an orphanage for gifted children in Winchester, England. Watari is well trained in espionage and marksmanship. Rem kills Watari, along with L, in order to protect Misa.

L Lawliet 

L Lawliet, known as L, is an enigmatic, mysterious and highly-esteemed international consulting detective, whose true identity and background is kept a secret, communicating with law enforcement agencies only through his equally inexplicable handler/assistant, Watari, who serves as his official liaison with the authorities. Though his past is shrouded in mystery, he has gained a reputation as arguably the world's greatest detective/criminal profiler. Throughout the series, he observes and spies on the activities of Light Yagami, a high school genius. L attempts to expose Light as the infamous serial killer Kira, who is responsible for massacring high-profile criminals worldwide through apparently supernatural means.

Near 

Near, whose real name is Nate River, is the young detective who succeeds L by default. He is the head of an organization created to catch Kira, the SPK (Special Provision for Kira). A placid character with a sharp tongue, he has white hair and wears pale clothes. He constantly plays with toys, building towers of dice and playing cards, and illustrating his exposition with small finger puppets and Lego minifigs. He is seen completing blank puzzles, which emphasizes his problem-solving skills. He was the person who succeeded identifying and capturing Light as Kira.

Mello 

Mihael Keehl is universally referred to Mello. Mello is introduced alongside Near as a potential substitute for L. Both Mello and Near were raised at Wammy's House, an orphanage established by Watari, L's assistant. However, Mello refuses to work with Near to capture a murderer dubbed Kira. Over the course of Death Note, he joins the mafia, obtains a Death Note, causes the death of some people, and dies before he can expose Kira's identity.

Matt 

Matt, whose real name is Mail Jeevas, is a cohort of Mello's. Matt was also a former resident of Wammy's orphanage; Ohba described him as the most talented member however he is lazy of the house. Matt is Mello's helper as Matt performs espionage work and acts as an accomplice in Takada's kidnapping, which results in his death when he is shot by Takada's bodyguards. Matt enjoys video games and is not outgoing. He also seems to be a chain smoker. He uses his last breath to smoke his cigarette. He is the third smartest member of Wammy's House and the third successor to L.

Roger Ruvie 

Roger Ruvie acts as the manager of Wammy's House. He is aware of L and Watari's detective work. Despite his work with children, he detests them. At the end of the series, he becomes the new Watari for Near.