Suzume (スズメ) is a Chūnin from Konohagakure. She taught Ino and Sakura's kunoichi class in the past, showing them how to pass themselves off as a normal women when undercover. She appears again in the anime during the Fire Temple arc protecting the village from attackers. (Source: Narutopedia)
Karin is a former subordinate of Orochimaru who assisted him in his experimentations and was left in charge of one of his bases while he was away; and was also the only one loyal to Orochimaru to remain even though his current status is questionable. She has red eyes, matching hair color and an unusual hairstyle; her hair is short and unkempt on one side, and long and combed on the other. Karin will at times appear tough and in control and other times she is flirtatious. Karin's name means 'intense sulfur' and is also a homonym for the fruit 'quince'. Sasuke Uchiha recruits her as a member of Snake. While Sasuke admits she may be troublesome, he also notes that her special abilities make her useful. She also seems to have a liking for Sasuke, implying to Sasuke that a team consisting of the two of them would be much better than one with Suigetsu or Jugo. Suigetsu noted that something once happened between her and Sasuke though what this means remains unclear, since she punches Suigetsu before he can finish his sentence. Karin's special ability allows her to track specific individuals through chakra, seen when she is able to discern that Jugo is not among a crowd of prisoners through the standard concentration pose for molding chakra. It also allows her to pick up chakra from long distances and notice changes in an individual's chakra. in chapter 579, it is discovered that Karin is from Uzumaki clan. It is said that people from the Uzumaki clan all have red hair and they all possess very strong life force
Suigetsu H�zuki is a former experimental subject of Orochimaru. Suigetsu once trained to be one of the Seven Swordsmen of the Mist, and as such has a number of traits consistent with other known members. In addition to having shark-like teeth, Suigetsu enjoys killing; Kisame Hoshigaki, one of the Seven Swordsmen, claims Suigetsu is a prodigy at the art of murder, as he has a habit of chopping off his victim's limbs before beheading them. He is also very confident in his abilities, since he has threatened Sasuke Uchiha on more than one occasion. Not afraid to speak his mind and always doing as he pleases, Suigetsu clashed with Sasuke at first, but eventually came to accept Sasuke's position and even put himself in harm's way to protect him. After joining Hebi, Sasuke takes Suigetsu to retrieve Zabuza Momochi's giant Kubikiri H�ch� from his graveside. Suigetsu can wield the weapon with relative ease, despite its enormous size and weight. In his allegiance with Sasuke, Suigetsu hopes to acquire the sword of Kisame as well, which Karin assumes to mean that he wants to collect all of the swords of the Seven Swordsmen. Suigetsu is able to reduce himself to liquid form and return to bodily form at will. This ability also allows him to change his body shape, giving him the ability to increase the size of his limbs, proportionally increasing his strength, if necessary. It also makes striking him somewhat difficult; since he is made of liquid, any sufficiently powerful strike will go right through his watery form. Suigetsu is the first ninja seen carrying water bottles on his outfit. Given his somewhat frequent desire to consume water, it is suggested that Suigetsu requires regular hydration to sustain his watery form.
The Nine-Tailed Demon Fox is the most powerful of the tailed beasts, also considered the "King of the Tailed Beasts." Its power is such that it is regarded as an age-old natural disaster, as a single swipe of one of its nine tails is enough to raise tsunamis and flatten mountains. One of its special abilities is that it has access to close to unlimited sources of chakra. The demon fox's attacks were seemingly random, the only apparent reason for its appearances being its attraction to places of human malice. It attacked Konohagakure twelve years before the start of the series. None of the ninja of the village were able to defeat it until the Fourth Hokage, Minato Namikaze, arrived to deal with it. Minato sacrificed his life to seal the fox into the body of his newborn son, Naruto Uzumaki, with the Dead Demon Consuming Seal. Rather than completely seal off the fox's great power, however, Minato only sealed away a portion of it, giving Naruto access to the rest for unknown reasons. Prior to performing the seal Minato gave a key to Jiraiya to either strengthen or weaken the seal should the need arise. The seal naturally becomes weaker as the years pass, and in the event that it is broken the demon fox will be released; however, the bond between Naruto and Kyuubi, and the bond between Jinchuuriki (host) and tailed beast in general, is of a such character that if the seal is broken, Naruto will die immediately thereafter. And if Naruto dies, and the seal is not broken, Kyuubi will die with him. Therefore Kyuubi uses some of its chakra to enhance Naruto's healing abilities and will sometimes "take over" (lend Naruto its chakra without him asking for it) in order to keep him alive.
Gamakichi (ガマ�; Literally meaning "Propitious Toad") is one of Gamabunta's children. He was first summoned by Naruto Uzumaki because Naruto couldn't focus his chakra during the beginning of the battle with Gaara. However, he is intelligent enough to be aware of the situation around him and realize when it's time to flee. During the Sannin battle, Gamakichi was accidentally summoned again by Jiraiya while he was fighting with Orochimaru because Tsunade had secretly fed Jiraiya a chakra-disrupting potion.
Aoba served as a J�nin ninja in Hidden Leaf Village.
Age: 22 on surface, though immortal. From: Yugakure, the Village Hidden in the Steam Weapon: 3-headed Scythe Partner: Kakuzu Religion: Jashin-ism Because he is a member of the Jashin religion, Hidan has immortality. This immortality will end, however, if he does not regularly sacrifice people to Jashin. This is a religion that worships a deity of the same name and where anything less than death and utter destruction is considered a sin. His religion's experiments have led to the creation of his unique abilities; by consuming an opponent's blood and then drawing Jashin's triangular-design on the ground, Hidan can create a voodoo doll-like link with his opponent. Once this link is created, any damage done to Hidan's body is reflected on his opponent, allowing him to kill them by giving himself fatal injuries. Because he is immortal, Hidan is not impaired while doing this, instead finding pleasure in the pain it causes him. Hidan is sadistic, arrogant, rude, and impatient. All qualities which his partner, Kakuzu, finds annoying. He and his partner, Kakuzu, fight and argue constantly, so it might be a wonder why they are put on the same team. Kakuzu actually commented that he and Hidan made the perfect team, because even thought Kakuzu has the urge to kill Hidan often, he is unable to due to his partner's immortality. Because Kakuzu is considered immortal as well, their own fellow Akatsuki member, Kisame Hoshigake, jokingly referred to the team as the "Zombi Combi". Hidan likes to annoy the other members of the Akatsuki, and even refers to them by insulting nicknames, such as "Dei-chan". He dislikes Pain's authority over him and openly challenges him in front of others. Hidan's aggressiveness is the reason he left his village, where he was frustrated by the peace and lack of violence, before leaving he slaughtered many of his neighbours in cold-blood for entertainment. Hidan is now likely to be dead, since he's decapitated, further sacrifices are impossible. His killer was Shikamaru, who killed him to avenge Asuma's death.