SPK In Death Note

The Special Provision for Kira, usually abbreviated SPK, is a group of anti-Kira formed by members of Central Intelligence Agency and Federal Bureau of Investigation members headed by Near. Membership of the group remains small to preserve secrecy and the group decides to work separately from the Japanese task force. Many of the SPK are later killed with the Death Note by the mafia due to leaked information, which is never directly mentioned in the anime.

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.

Anthony Rester 

Commander Anthony Rester, real name Anthony Carter, is the second-in-command and the lead crime scene investigator. Rester follows Near except in emergency situations. Near trusts Rester and sometimes reveals certain information solely to Rester. It is stated that Rester's quiet personality and physical capabilities serve useful functions in the SPK. It is also stated that Rester is far below Near in terms of intellectual prowess. He was the captain of a special forces squad before joining Near's team.

Halle Lidner 

Halle Lidner, whose real name is Halle Bullook, works for Near as part of his investigation team. Halle is a former CIA agent who leaks information to Mello in order to increase the chances of Kira being caught. Halle, who has a strong core, wanted to capture Kira as the Yotsuba Kira killed an acquaintance close to her.

Stephen Gevanni 

Stephen Gevanni, whose real name is Stephen Loud, works for Near as part of his investigation team. Gevanni is assigned to follow Mikami for much of the case, and it is his meticulous analysis of Mikami's personal habits which allow him to find Mikami's Death Note and swap it with a fake. Gevanni skillfully follows and monitors suspects and has abilities such as the skill of picking locks. Gevanni is described as a good-looking hotshot who received an invitation to join Near's team because of his skills.

Steve Mason
Steve Mason is the head of the Federal Bureau of Investigation. He assists L in investigating the Japanese police and withdraws FBI involvement after the agents die. At a later point he helps Near create the SPK. Mason dies due to the Death Note.