Mukade was a J�nin from Sunagakure and later left Suna and became a servant of Akatsuki member Sasori. He was used as a sacrifice and was transformed into Kisame Hoshigaki as a means to stall Team Guy while the Akatsuki extracted the One-Tailed Shukaku from Gaara. Might Guy killed the Kisame clone (and in turn Mukade) with his Morning Peacock. (Source: Narutopedia)
Hanzou (å�Šè”µ) also known as Hanzou of the Salamander (山椒éšã�®å�Šè”µ, Sanshouuo no Hanzou) was a legendary ninja who was the former leader of Amegakure. He was very security-conscious, being guarded twenty-four hours a day and having anyone who wanted to see him thoroughly searched. He became famous around the time of the Second Great Ninja War. Little is known of his abilities aside from his riding on the head of a giant salamander (presumably a summon), but he was so powerful that he with his summon fought off all three Sannin. After their battle, he was so impressed with their strength that he decided to leave them if they agreed to accept the title of Konoha's Legendary Three Ninja (ä¼�説ã�®ä¸‰å¿�, Densetsu no Sannin); This makes him responsible for the naming of the trio's title. Being capable of defeating all the three Sannin head-on, Hanzou is easily a kage-level ninja. His power was such that Jiraiya expressed intense shock upon hearing that Hanzou had been defeated by Pain. Hanzou's insecurities later got the better of him when a group of ninja, lead by Yahiko, Nagato, and Konan began a quest to end war through unorthodox means. He viewed these ninja as a threat to his power and sought to get rid of them. He then teamed up with the ANBU Root's leader DanzÅ� to kill the group's leader Yahiko in a treacherous manner. He was later single-handedly killed by Pain (under unknown circumstances). The hatred that Nagato had for him for causing Yahiko's death was so severe that he conducted a systematic genocide on anybody even remotely associated with Hanzou (with the exception of Danzou, who somehow escaped the carnage). (Source: Narutopedia)
Taiseki (タイセã‚) was a shinobi from Iwagakure who fought and died during the Third Great Shinobi World War. He had a quiet and wary personality. He formed a team with KakkÅ�, using their superb diversionary tactics to attack the enemy. With his Hiding with Camouflage Technique he was able to approach his enemies from their blind spot, easily killing them with a single strike. He confronted Team Minato, led by Kakashi Hatake, during the Third Great Shinobi World War, managing to take Rin captive. He was later killed by Obito Uchiha, however, while he and Kakashi attempted to rescue Rin.
Yagura (や�ら) was a shinobi from Kirigakure and the host of the Three-Tailed Giant Turtle. When the Three-Tails was captured by Akatsuki, it had no host and roamed out in the wild. Why the beast was removed from this jinchūriki is unknown. Because Yūkimaru has some control over the Three-Tails, and because he has some resemblance to this jinchūriki, it is speculated that they have some connection to each other, however Yūkimaru is a anime-only character that does not appear in the manga. (Source: Narutopedia)
Seems to be one of the Seven Swordsmen. He is protecting the Mizukage while on their journey to the Kage Summit. He seems to be unsure about himself. He appears to wield some form of dual weapon (presumably a Sword) linked together by the handles. At the end of the manga, Chojuro becomes the 6th Mizukage. (Source: Narutopedia)
Ao is a shinobi of Kirigakure. Ao is a middle aged gentleman with a eyepatch over his right eye; he also wears to talismens on his ears.
The Great Toad Sage is the oldest and most respected toad of all the inhabitants of Mount My�boku. Because of his age, the other toads affectionately call him Great Honorable Geezer. He is famed for his highly accurate prophecies. Being several thousand years old, he is the oldest and most respected among the population of Mount My�boku. At his great age, the Great Toad Sage seems to constantly smile and tends to have his eyes closed or squinting. He is portrayed and described as being senile, and sometimes out of touch with his present situation, so he does tend to forget things easily and quite quickly. However, when reminded, he is still able to remember things and can easily tell things very precisely. As a sage, he is also very wise, and is quick to stop Shima and Fukasaku from bickering and encourages harmony. It would seem that unlike most other toads, he actually has respect for Jiraiya, and has urged both Shima and Fukasaku to cooperate with him