Ill Ratt

Ratt has short brown hair and dresses in a plain black suit and tie. When Takeshi Obata designed the SPK lineup, he deliberately gave Ratt a shifty, untrustworthy look in order to foreshadow the character's hidden role as an informant.

Little is revealed of Ratt beyond his function as a mole. Outwardly he behaves as a dependable SPK agent, yet his true allegiance lies with Mello, for whom he quietly collects and relays secrets while keeping his cover intact.

Once the SPK is established, Ratt steps outside their base and borrows a passerby's phone to pass Mello what he has learned about the Death Note. He is also briefly tasked by Steve Mason with arranging for John McEnroe to collect Soichiro Yagami and his daughter Sayu after her abduction and the notebook exchange. When Mello finally seizes the Death Note, he writes out most of the SPK, and Ratt dies by shooting himself in the head, a move that denies Near any chance of using the mole to trace the Mafia. The anime version never exposes him as an informant.

In Death Note Relight 2: L's Successors, Kiyomi Takada forwards his photograph to Teru Mikami, whose Shinigami Eyes reveal that Ratt is operating under a false name. Mikami records the real one, and as Ratt raises his pistol he briefly points it at Near, drawing a scream from Halle. His lifespan, shown only in that special, is given as 0235 21.