Hoshigaki Kisame was introduced alongside Uchiha Itachi, as one member of the dreaded Akatsuki.
Not much is currently known about Kisame, other than his past affiliation with Momochi Zabuza in Hidden Mist's
Seven Legendary Swordsmen group. He has a freakish personality and equally freaky appearance.
He has a terrifying sword he calls Samehada, which sucks up Chakra being built inside the body, and rather than slicing it's intended
victim, it rips them apart like the
teeth of a shark.
He loves to
fight, and was eager to
fight Asuma, Kurenai, and Gai, but was only merely disappointed when Itachi ordered a retreat. He is fearless, and not afraid to use his Samehada liberally. Truly someone to be cautious, if not feared by.