Yamato (ヤマト), also known as "Tenzō" (テンゾウ, Tenzō), are both code names for this Anbu-turned-jōnin of Konohagakure. As his Wood Release would allow him to be able to keep the Nine-Tails sealed within Naruto Uzumaki in check, he was re-assigned from Anbu to the regular forces, joining Team Kakashi as a temporary replacement for their jōnin-sensei, Kakashi Hatake. While Kakashi eventually returns to the team, Yamato stays on to provide assistance as needed. (CHECK BELOW FOR SOURCES.)