Kakuzu was a very tall (easily second tallest member of Akatsuki), light brown male with long dark brown hair. His eyes were an unusual coloration: green irises, no pupils, and red sclera.
Kakuzu is also biologically immortal and can only be killed if all five of his hearts are destroyed.
Naruto didn’t provide much backstory to Kakuzu and it was never clear when Kakuzu joined Akatsuki. However, he died at the age of 91. This makes him one of the oldest Akatsuki members.
14 Zetsu – Master of Infiltration
Zetsu was the weakest member of the Akatsuki. He specializes in infiltrating various locations and gathering information. During his time in the organization, he was never involved in a serious fight that would show his combat prowess.
With the loss of the Kazekage doll, Sasori revealed the reason for his young appearance: his own human doll body, itself armed with numerous weapons and poison-infused traps. Sakura finally managed to break his doll’s body apart, but missed its core, allowing it to reassemble.
Hidan is a villain from the anime and manga Naruto and a member of the Akatsuki. He partners with Kakuzu and is known in Akatsuki as the immortal duo.
Boruto: Naruto Next Generations has been teasing the return of a certain Konoha ninja, Asuma, for a number of episodes. While Asuma’s return is a big deal for the series, almost as important is the reference to the return of a certain member of the nefarious Akatsuki, Hidan.
Deidara (デイダラ) was an S rank without nin from Iwagakure. He was a member of the Explosion Corps before leaving the village. He joined the Akatsuki.
Kakuzu joined Akatsuki because it assures him of protection through group formation and money-raising opportunities. Hidan: He was an experiment of his village and a follower of Lord Jashin. He killed people to offer sacrifices to his master, so he was a wanted criminal with a large bounty on his head.
5 HAS NO CHANCE: Kakuzu
His mission was to assassinate Hashirama Senju and he barely managed to escape with his life. Kakuzu improved over the years and gained immortality by stealing the hearts of the ninjas he killed.
Kakuzu is a very powerful shinobi, he possesses five hearts which allow him to have five lives. Kakuzu can replace these hearts when they are destroyed by removing them from a defeated opponent.
Kakuzu uchiha is a shinobi of the Uchiha clan and one of the first humans to inherit Madara Uchiha’s plan after his presumed death, succeeding him as head of the clan.
Kakuzu is the oldest shinobi of a known age
Although Hidan is extremely immature, Kakuzu would probably consider the 22-year-old practically a toddler no matter what he did like. This is because Kakuzu is actually the oldest shinobi of a set age – before his death he was 91 years old.