The Fire Daimy� has a fickle and indecisive nature and is easily swayed in his decisions through biases as well as external influences. When situations call for fast, important decisions, he makes his advisers do the whole work: the one who convinces him most is the "winner". He seemingly had a liking for Jiraiya, wanting to choose him as the next Hokage, and was also impressed by Kakashi Hatake's reputation. (Source: Naruto.wikia)
Rank: Chuunin Birthday: November 15 Blood Type: A Rin, a medical ninja, was the teammate of Hatake Kakashi and Uchiha Obito during the Kakashi Gaiden arc. She is a sweet and friendly girl who cares for her teammates. She is also the one who implanted Obito's left eye into Kakashi, giving him his Sharingan. She has intimate feelings for Kakashi. According to the manga she is dead, as revealed when Kakashi is killed by Pain. He apologizes to Obito because he broke their promise and failed to protect Rin. It is later revealed that Rin isn't killed by Kakashi. But deliberately went to Kakashi's raikiri.
Obito Uchiha was teammates with Kakashi Hatake and Rin under the Fourth Hokage. Obito was frequently late for missions due to the random good deeds he would carry out, which greatly irritated Kakashi. He also seemed to have had a crush on Rin. When Rin is kidnapped during the Kakashi Gaiden arc, Kakashi, the current team leader, insisted that they continue the mission instead of saving her. Citing that those who do not save their teammates are no better than trash, Obito refused and eventually managed to persuade Kakashi to join him. During their rescue effort Kakashi lost his left eye as a result of an enemy ninja's attack, and Obito awakened his Sharingan to save Kakashi and defeat the ninja. Once finding Rin, Obito again saved Kakashi by pushing him out of the way of a rock slide, though has his right side crushed in the process. Unable to escape with his teammates, Obito had Rin implant his remaining Sharingan eye in Kakashi's damaged eye socket as a gift. In chapter 599 it is revealed that Tobi is actually Obito Uchiha who was teammates with Kakashi Hatake and Rin under the Fourth Hokage.
Hiruko (�留呼) is the main antagonist of Naruto Shippūden 3: Inheritors of the Will of Fire. He is a missing-nin of Konohagakure who wishes to plunge the world into a Fourth Great Shinobi World War, and then conquer it. Though he was born with no natural special abilities, Hiruko compensates by using the Chimera Technique, a kinjutsu which he developed, allowing him to obtain Kekkei Genkai by integrating the bodies of other ninja with his own. Having already stolen four Kekkei Genkai from the other Great Nations, Hiruko possesses other abilities and physical traits from his victims, such as enhanced strength, and seeks to obtain more. In addition to these abilities, Hiruko and his followers are able to use the Chimera Technique to produce creatures that are literal chimeras, including a large, bird-like monster that molts explosive feathers and wolf-like beasts that attack using appendages resembling tentacles. Through his Chimera Technique, Hiruko has acquired four Kekkei Genkai: Steel Release, Swift Release, Dark Release, and Storm Release and also an Unnamed Three-eyed technique. It is unknown if he acquired more. In addition to this he also has a section on the palm of his hand where he can literally "absorb" the technique being thrown at him. (Source: Narutopedia)
Akamaru is the nin-dog of Inuzuka Kiba. He is his best friend and plays an important part in all of Kiba's attacks. As a puppy, he is either in Kiba's jacket or on his head, but he later grows to be so large that Kiba can ride him. He has very good senses, even for a dog, and can communicate with Kiba. Akamaru's name means "red" (with "maru" at the end, which is simply an ending for a boy's name. Other males in the show share the suffix). When he eats a solider pill, his fur turns a dark red color. Akamaru's seiyuu is Takeuchi Junko, who also plays the main character Uzumaki Naruto.
Birthdate: October 18 Horoscope: Libra Age: 27-28 (Part I), 31 (Part II, Deceased)Height: 190.8 cm (6'25'') Weight: 81.6 kg Blood Type: O Clan: Sarutobi clan Family: Sasuke Sarutobi (Grandfather) Hiruzen Sarutobi, Biwako Sarutobi (Parents) Konohamaru Sarutobi (Nephew) Kurenai Yūhi (Lover) Kurenai Yūhi's child (Daughter) Affiliation: Konohagakure Team:Twelve Guardian Ninja (Former) Nijū Sh�tai Team AsumaRank: J�nin Registration ID: 010829 Academy Grad. Age: 9 Chūnin Prom. Age: 12 Missions Completed: 719 (D-Rank: 111, C-Rank: 193, B-Rank: 217, A-Rank: 178, S-Rank: 20) Favorite Phrase: "Not right now!" Likes: Sh�gi, sausage and soba with tororo Dislikes: Asparagus Manga debut: Chapter 34 Anime debut: Naruto episode 3 Nature Type: Wind Release (Affinity), Fire Release Jutsu:Fire Release: Ash Pile Burning, Flying Swallow, Welcoming Approach: Thousand-Armed Murder, Wind Release: Dust Cloud Technique, Wind Release: Verdant Mountain's Violent Wind A Jounin master, he is the leader of Team 10 (Nara Shikamaru, Yamanaka Ino, Akimichi Chouji). Although normally seen smoking, Asuma can quickly dispatch his foes with his knives when the situation warrants. He is also the third Hokage's son. During the special episodes 78-79, Asuma dies fighting Hidan of the Akatsuki.
Birthday: July 21 Kotetsu Hagane is a Chunin from Konohagakure. He spends most of the time with his partner Izumo Kamizuki watching who enters and leaves at Konohagakure's Main Gate.