Mizuki


 * Name: Mizuki Touji
 * Ninja Registration Number: 011141
 * Age: 26
 * Birthday: October 21st
 * Height: 179.4 cm
 * Weight: 69.4 kg
 * Blood Type: AB
 * Rank: Chunin
 * Seiyu: Shinichiro Miki
 * Voice actor Michael Reisz (anime), Josh Keaton (Naruto: Clash of Ninja 2)

is a childhood friend and fellow Ninja Academy instructor of Iruka Umino. At the series' start he tricks Naruto Uzumaki into stealing Konoha's forbidden scroll that contains a number of forbidden jutsu. He convinces Naruto to do it by appearing sympathetic to him, but actually despises Naruto, considering him no different than the demon fox. While he intends to steal the scroll from Naruto and use Naruto as a scapegoat in the meantime, Iruka eventually figures out what he's up to and the two are drawn into battle. Using the Multiple Shadow Clone Technique he learned from the scroll, Naruto quickly defeats Mizuki as punishment for harming Iruka. In what is perhaps an attempt to make him even more of an antithesis to Naruto, Mizuki's least favorite food is ramen, which happens to be Naruto's favorite.

Although Mizuki initially seems to have no specific use for the scroll, the anime's filler arcs show that, as a former student of Orochimaru, he intended to give the scroll to his master. After leading a prison revolt to escape from jail, Mizuki uses the instructions depicted on a tattoo given to him by Orochimaru to create a potion. After consuming the potion, Mizuki transforms into a tiger-like man-beast with doubled speed and power, but Naruto manages to defeat him again, with Iruka noting that Naruto has surpassed him. Mizuki, however, is yet another victim of Orochimaru's manipulation, and turns into an angry, shriveled, and powerless old man when the potion dissipates. Tsunade eventually heals him back to his normal state and interrogates him about the whereabouts of Orochimaru, but learns nothing of any use.