Yagura Karatachi

was the host of the Three-Tailed Giant Turtle and also the of Kirigakure. When the Three-Tails was captured by Akatsuki, it had no host and roamed out in the wild. The reason why the Three-Tails was removed from Yagura is unknown.

During his time as Mizukage, the village was known as the "Village Hidden in the Bloody Mist", where the barbaric ritual of Academy Students kill one another for graduation, until Zabuza Momochi's massacre ended the ritual. It is likely that Yagura was the Mizukage who Zabuza tried to assassinate.

Despite the terror of his reign, he appears to be kind. Apparently the people of Kirigakure fear that Yagura was being manipulated, possible by the Akatsuki.

Trivia

 * The stripe down the jinchūriki's left cheek might be connected to the Three-Tails' single open eye.
 * Because Yūkimaru has some control over the Three-Tails, and because he has some resemblance to this jinchūriki, it is speculated that they have some connection to each other; however, Yūkimaru is an anime-only character that does not appear in the manga.
 * Yagura is one of only four people who were able to truly control a tailed beast, with the others being Hashirama Senju, Madara Uchiha and Killer Bee.