Shukaku

Tailed Beasts (Biju) in Naruto's World (10 items)
list by Tim Lee

Shukaku (守鶴, Shukaku), more commonly known as the One-Tail (一尾, Ichibi), is a tailed beast that was last sealed within Gaara of Sunagakure after being sealed in two other hosts.[3] It was captured by Deidara, then extracted and sealed by Akatsuki, only to be released later on by Gaara.