Sabu

is an enka ninja music master. He apparently has a large raccoon, Ponta, as a pet. Killer Bee calls him and later the oddly constructed.

Appearance
Sabu is a short, apparently middle aged man. His hair is done in a traditional Japanese manner, but with a punch perm bun on top of his head. During his debut he is standing on a large axe or sword.

Five Kage Summit arc
Master Sabu was training his student Killer Bee, urging him to show more passion in his singing. As they practice, Kisame arrives, preparing to capture Killer Bee. Master Sabu seemed content with waiting while his student began to fight.

Trivia

 * is the nickname of Japan's most famous enka singer, Saburō Kitajima. Sabu also looks a lot like Saburō Kitajima.