Harusame was the former master of Utakata. He was once Utakata's master and he had trusted him until Harusame tried to remove the Six-Tailed Slug from his body which resulted in Utakata transforming into the Six-Tails and killing him. Since then, Utakata has held a great grudge against Harusame and made him think a student and master bond is not something to be counted on. Tsurugi states that Harusame tried to remove the Six-Tails to save Utakata, but Utakata believes otherwise. (source: narutopedia)
Tsurugi was the head of Kirigakure's Hunter-nin.
Fuen was a kunoichi who was part of the group of grave robbers who dug up four of the dead Twelve Guardian Ninja. She was the strategist and trap expert of the group, and was widely thought of as the weakest member of the team.
Kigiri (鬼霧) was a shinobi who appeared in the second Naruto Shippūden filler arc. Kigiri appeared quite laid-back compared to other members of the group. Also, he addressed Rinji as Aniki (Brother) on occasion. In addition, he seemed to be a bit of a gambler as he was shown playing cards with Rinji while in the hideout.
Shoseki (笙関, Shoseki) is the apprentice of tool maker Iou. He is an apprentice of Iou, and is helping him in his tool-making job. He often complains about hard work. One time he mistakenly sold Gameru and Kusune two ninja tools Iou created: Tsuru-Kame and Dako, to increase their budget. (source: Narutopedia)
Kandachi (カンダ�, Kandachi) is a missing-nin from Amegakure and was Hanz�'s right hand man. Sometime after Pain killed Hanz�, Kandachi and a group of Ame ninja fled the country and went into hiding by taking over a village surrounded by a magnetic force that affects a person's chakra flow to the brain similar to genjutsu. Like his superior Hanz�, he fights mainly using the Summoning Technique. He can command the Conch King with hand seals. All of the hand seals performed also give the Conch King a signal to use a specified technique. Kandachi has shown a rare ability to cast a genjutsu on his opponent though the Conch King. The magnetic field caused by the tree strengthens this genjutsu, as the magnetism disrupts a person's chakra flow, similar to a genjutsu. Kandachi can also command the Conch King to propel above water by using Wind Release. When Jiraiya brought Naruto Uzumaki to the forest for training, they encounter Tanishi who tells them of Kandachi's takeover. Naruto (disguised as Tanishi) and Jiraiya, pretending to be captured, meet with Kandachi, surprised to see Jiraiya again. Naruto's cover is blown when the real Tanishi arrives and Kandashi decides to feed the villagers to the Conch King. Naruto fights against Kandachi and the Conch King but their techniques knocks Naruto down every time. In the end, Naruto defeats them both with his first Great Ball Rasengan.
Yone is the wife of Sukune and mother of Tanishi. She, along with the other women and children, was held hostage by Kandachi and his men when they killed Sukune and took over their village. Jiraiya stated that she and her husband Sukune were very kind to him the first time he visited the Genjutsu Tree Village.