Kisame Hoshigaki

Kisame Hoshigaki is a missing-nin from Kirigakure and is partnered with Itachi Uchiha. He gets along considerably better with Itachi than most Akatsuki members do with their own partners, immediately doing as Itachi asks of him and always looking out for Itachi's well-being. His former country, the Land of Water, now seeks him out for plotting to overthrow its government and being involved in numerous assassinations. When he was still loyal to Kirigakure, he was one of the Seven Swordsmen of the Mist, a group of ninja that wield particularly large weapons in battle.

Kisame has a distinctive shark-like appearance, complete with pale blue skin, small white eyes, gill-like facial structures, and sharp triangular teeth. Even his name, Kisame, means "demon shark". His shark-like qualities carry over to the type of techniques he uses in battle, as he often shapes bodies of water into the forms of sharks that proceed to attack opponents. If there is no water source where he happens to be fighting, Kisame can use Water Release: Exploding Water Shockwave to create a lake's worth of water to be used for attacks. Kisame is also noted to have a particularly large reserve of chakra; even when he fights at 30% power in one instance his chakra supply is compared to that of a Nine-Tailed Demon Fox-enhanced Naruto Uzumaki.

(Source: Naruto.com)