Here is some Profiles of Sensei in Naruto:
Chunin
Iruka Umino
Age: 232 in Part I, 25 in Part II
Seiyu: Toshihiko Seki, Taisuke Yamamoto (as a child)
Voice actor: Quinton Flynn
Iruka Umino (Umino Iruka) is an instructor at the Ninja Academy, characterized by the distinctive scar across his face that he has had since childhood. The name "Umino Iruka" can be taken as "umi no iruka" ("sea dolphin"). His parents were killed by the Nine-Tailed Demon Fox when he was younger, though he holds no hostility towards its container, Naruto Uzumaki. In fact, Iruka is one of the few people at the start of the series who values Naruto as a person, being able to relate with Naruto's methods of trying to gain attention. Because he, like Naruto, was forced to grow up without parents, and was socially isolated as a result, he can relate to Naruto in this regard as well and has assumed the role as Naruto's father-figure. Once Naruto becomes a ninja Iruka starts to underestimate Naruto, and as such become overprotective of him, though he in time discovers that Naruto has all the makings to become a great ninja.
Little is known about Iruka's abilities, but he is clearly proficient in the basic ninjutsu and genjutsu, seen when he disguises himself as an enemy ninja and menaces Team 7 as a pretest for the Chunin Exam. The anime filler episodes show Iruka using Sealed Bombs Square Release (Fūbaku Hojin), which consists of setting an array of exploding tags and, once the target has entered, setting the tags to detonate if the target moves. Because this only applies to the target, meaning others can freely enter the array without harm, it is possible that Iruka is skilled in this area.
Mizuki
Age: 261
Seiyu: Shinichiro Miki
Voice actor Michael Reisz (anime), Josh Keaton (Naruto: Clash of Ninja 2)
Mizuki (Mizuki) is a childhood friend and fellow Ninja Academy instructor of Iruka Umino. At the series' start he tricks Naruto Uzumaki into stealing Konoha's forbidden scroll that contains a number of forbidden jutsu. He convinces Naruto to do it by appearing sympathetic to him, but actually despises Naruto, considering him no different than the demon fox. While he intends to steal the scroll from Naruto and use Naruto as a scapegoat in the meantime, Iruka eventually figures out what he's up to and the two are drawn into battle. Using the Multiple Shadow Clone Technique he learned from the scroll, Naruto quickly defeats Mizuki as punishment for harming Iruka. In what is perhaps an attempt to make him even more of an antithesis to Naruto, Mizuki's least favorite food is ramen, which happens to be Naruto's favorite.
Although Mizuki initially seems to have no specific use for the scroll, the anime's filler arcs show that, as a former student of Orochimaru, he intended to give the scroll to his master. After leading a prison revolt to escape from jail, Mizuki uses the instructions depicted on a tattoo given to him by Orochimaru to create a potion. After consuming the potion, Mizuki transforms into a tiger-like man-beast with doubled speed and power, but Naruto manages to defeat him again, with Iruka noting that Naruto has surpassed him. Mizuki, however, is yet another victim of Orochimaru's manipulation, and turns into an angry, shriveled, and powerless old man when the potion dissipates. Tsunade eventually heals him back to his normal state and interrogates him about the whereabouts of Orochimaru, but learns nothing of any use.
"Mizuki" is typically a female name, with possible meanings including "water tree" and "beautiful moon," but because it is written in katakana rather than kanji, the meaning of the name is unknown.
Izumo Kamizuki
Age: 241 in Part I, 27 in Part II
Seiyu: Tomohiro Tsuboi
Voice actor: Richard Cansino
Izumo Kamizuki (Kamizuki Izumo) and his comrade, Kotetsu Hagane, make their debut trying to discourage Genin from participating in the Chunin Exams. Their effort proves ineffective, and they later serve as proctors for the first exam. In the anime, after the Fifth Hokage takes office, Izumo and Kotetsu act as her personal assistants, and also become the patrolmen of the entrance/exit gate of Konoha. The two appear again in Part II as members of the Niju Shotai teamed with Asuma Sarutobi and Shikamaru Nara. During a battle with Akatsuki member Kakuzu, Izumo uses Water Release: Syrup Capture Field (Suiton: Mizuame Nabara) to blanket the ground in a sticky syrup that immobilizes Kakuzu, and Kotetsu attempts to attack the immobilized Akatsuki member. The attempt fails and the two are captured, but both are saved by the arrival of reinforcements.
Kotetsu Hagane
Age: 241 in Part I, 27 in Part II
Seiyu: Tomoyuki Kouno
Voice actor: Liam O'Brien
Kotetsu Hagane (Hagane Kotetsu) is the comrade of Izumo Kamizuki. "Kotetsu" means "little steel," and "Hagane" means "steel." Kotetsu and Izumo make their debut trying to discourage Genin from participating in the Chunin Exams. Their effort is unable to deter Team 7 and Team Guy, and they later serve as proctors for the first exam. In the anime, after the Fifth Hokage takes office, Izumo and Kotetsu act as her personal assistants, and also become the patrolmen of the entrance/exit gate of Konoha. The two appear again in Part II as members of the Niju Shotai teamed with Asuma Sarutobi and Shikamaru Nara. During a battle with Akatsuki member Kakuzu, Kotetsu summons an extremely large and ornate weapon resembling a conch shell. The attack fails and both are attacked by Kakuzu, but are saved by the arrival of reinforcements.
Tokubetsu Jonin
Ebisu
Age: 281 in Part I, 31 in Part II
Specialization: Private Trainer
Seiyu: Nobuo Tobita
Voice actor: Crispin Freeman
Ebisu (Ebisu) is a specialist in the private training of ninja, and uses this skill to tutor Konohamaru in general ninja abilities and later to train Naruto Uzumaki in better chakra control. The name "Ebisu" comes from the Japanese god Ebisu, who is usually pictured watching over the health of young children. He initially dislikes Naruto since he only sees him as the container of the Nine-Tailed Demon Fox, though after seeing the positive influence Naruto has on Konohamaru he begins to have a change of heart. Still, Ebisu doesn't approve of the perverted jutsu Naruto uses and then teaches to Konohamaru, though has himself fallen prey to Naruto's perverted jutsu, causing Naruto to often refer to him as the "closet pervert" because of this. Ebisu is briefly Naruto's tutor for the month between the preliminaries of the Chunin Exam and the finals, but Jiraiya knocks him out for interfering with his "research," and soon takes over as Naruto's tutor. In Part II, Ebisu is put in charge of a Genin team with Konohamaru and his two friends, Udon and Moegi, as its members.
Hayate Gekko
Age: 231 (deceased)
Specialization: Examiner
Seiyu: Nozomu Sasaki
Voice actor: Lex Lang
Hayate Gekko (Gekkō Hayate) is the examiner of the preliminary matches of the Chunin Exams. The name "Gekko" means "moonlight" and "Hayate" means "hurricane." At first sight, Hayate appears to not be in the best of health, as he has an unexplained chronic cough and bags under his eyes. Hayate is the first to discover the secret invasion plan between the Sound and the Sand after eavesdropping on a conversation between Kabuto Yakushi and Baki. As he tries to escape to tell others he is forced into battle with Baki. Hayate attacks Baki with his Dance of the Crescent Moon (Mikazuki no Mai, English TV "Crescent Moon Dance"), which creates three shadow clones to attack with him extendable swords in a complicated dancing pattern. Although Baki is impressed that Hayate could learn such a technique at such a young age, Hayate is killed. Hayate's lover, Yugao Uzuki, swears that she will avenge his death, but as she did not see the killer, and Baki has become Kohona's ally, it is not known if she will ever attempt to do so.
Despite only being in the series for a short amount of time, he was an immediate hit among fans, making 8th place in a popularity poll following his introduction and death, which would make him the most popular minor character at the time.
Raido Namiashi
Age: 322 in Part I, 34 in Part II
Specialization: Bodyguard
Seiyu: Hiroshi Tsuchida
Voice actor: Patrick Seitz
Raido Namiashi (Namiashi Raidō) serves as the Third Hokage's assistant during the Chunin Exams, and is characterized by a large scar on his left cheek. "Namiashi" means "walking pace" while "Raido" means "following blindly." After the Chunin Exams, Raido and Genma Shiranui confront the Sound Four, who are forced to go to level two of their cursed seals to defeat them. The Sound Four later comment that if it hadn't been for their cursed seals, Genma and Raido would have defeated them. In Part II Raido appears as a member of the Niju Shotai, assisting Asuma Sarutobi's team in the fight against Akatsuki. After Aoba Yamashiro covers the area in crows, Raido, dressed in black with a black sword, is able to sneak up on and attack Kakuzu. While he is unable to damage Kakuzu, he is able to learn some valuable information about Kakuzu's defensive capabilities.
Genma Shiranui
Age: 291-302
Specialization: Examiner
Seiyu: Hiroaki Hirata
Voice actor: Johnny Yong Bosch (anime), Crispin Freeman (Naruto: Ultimate Ninja), Richard Cansino (Naruto: Ultimate Ninja 2)
Genma Shiranui (Shiranui Genma) replaces Hayate Gekko as examiner of the main matches of the Chunin Exams after Hayate is killed. "Shiranui" means "phosphorescent light." Genma is often seen with a senbon in his mouth. He uses this as a weapon, spitting it out at the enemy to attack them, or to deflect ranged weapon attacks. When the invasion of Konoha begins, Genma battles Baki off-screen, presumably to a draw since both of them come out of the fight relatively unscathed. He later appears with Raido Namiashi to confront the Sound Four, who are forced to go level 2 of their cursed seals to defeat them. The Sound Four later comment that if it hadn't been for their cursed seals, Genma and Raido would have defeated them.
