Kakuzu (角都) is a fictional character from the manga series Naruto. The first kanji in Kakuzu's name (角) stands for kakugyō, a bishop in shogi.
Very little is known regarding Kakuzu's past; however, according to his scratched forehead-protector, he was a missing-nin from Takigakure. He appears to have been with Akatsuki for some time, since his current partner Hidan is noted to be the first to be able to safely travel with him (all his previous partners having been killed by him). Kakuzu is one of the longest-lived characters in the series, having been around since at least the time of the First Hokage, whom Kakuzu mentions having fought at one point. He doesn't elaborate on the outcome of said battle. Due to the fact Kakuzu is from the same time as the founder of Akatsuki, Madara Uchiha, it is possible Kakuzu was among the first members of Akatsuki.