Yoshito Kikuchi is one of Eikichi Onizuka's students. This computer prodigy (scoring the highest without certain "aid" in the country, on a standardized test) serves as class president and is also notorious for making pornographic composite photos, during Onizuka's arrival at the Holy Forest Academy. He tries to blackmail him into resignation with several pictures posted all across the school for everyone to see. Onizuka catches Kikuchi and instead of punishing him, hires him to make composite pictures of Azusa Fuyutsuki and other female teachers, much to his surprise.

Kikuchi eventually befriends Onizuka, and later helps Noboru Yoshikawa prevent Anko Uehara's mother, the president of the local Parent-Teacher Association, from getting Onizuka fired. Kikuchi is an amateur martial artist, having prior experience in judo and other techniques learned from Mayu Wakui. It is revealed after the examinations that he was the one who switched Onizuka's test papers for a perfect score. When questioned about the actual results that Onizuka has, Kikuchi calculates it himself, and is thoroughly surprised at the score (it is unknown whether Onizuka actually did score perfect, or a score befitting his intelligence), and asks him directly, to which his teacher replies that he definitely received a perfect score. In the manga, a possible relationship is hinted between him and Ai Tokiwa, after some intervention and a forced embrace from Onizuka.

(Source: Wikipedia)

Onizuka is a reformed biker gang leader who has his sights set on an honorable new ambition: to become the world's greatest teacher... for the purpose of meeting sexy high school girls. Okay, so he's mostly reformed. 
However, strict administrators and a class of ruthless delinquents stand between Onizuka and his goal and they will use any means, however illegal or low, to drive the new teacher away. Perfect, because Onizuka's methods won't be found in any teaching manual; he cares about the difference between legal and illegal activities about as much as he cares for the age difference between himself and a high school girl. 
So get ready for math that doesn't add up, language you'd be slapped for using, and biology that would make a grown man blush... unless of course, you're the Great Teacher Onizuka. 

 Note: Episode 1 has an airtime of 48 minutes.

**Favorite Cartoon Character:** Snoopy
**Favorite Food:** Omelet, Stew 
**Hobbies:** Collecting Nike running shoes, Video games 
**Skills & Abilities:** Saxophone

__[Profile](https://www.aoni.co.jp/search/midorikawa-hikaru.html) | [Blog](http://hikaru23.hatenablog.com) | [Twitter](https://twitter.com/greenriver_sr) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E7%B7%91%E5%B7%9D%E5%85%89)__

__Non-Anime Roles:__
- Mirror Knight - Ultraman Zero (Ultraman)
- Wisure - Kishiryu Sentai Ryusolger (Super Sentai)

He is known for playing tough or grouchy men in dubbed anime and video games. His career includes Hotohori in Fushigi Yūgi and Jin in Samurai Champloo. He also played numerous cameos and minor characters in Rurouni Kenshin, in addition to the major character of Hajime Saito. He also does Don Patch in Bobobo-bo Bo-bobo as well as Gabumon and other voices in Digimon.  According to Anime News Network, Thornton has the most credits of any male voice actor and he is second in total voice actor credits only next to Wendee Lee. He has been in nearly two hundred voice-over productions for Japanese animation.  Thornton is also well-known for having played many different minor voice roles throughout the Power Rangers franchise (and similar series such as VR Troopers and Masked Rider).  Thornton has also had experience with ADR direction. Currently, he is co-directing the ADR for the popular anime series Bleach alongside Wendee Lee.

He is the son of [Roberto Chevalier](https://anilist.co/staff/96266), a popular Italian voice actor too.

Former juvenile delinquent Onizuka finds himself thrust into to role of high school teacher, facing students who behave just as he used to and an administration that doesn't trust him. Using the brash an unorthodox methods he picked up in his youth, Onizuka manages to reach through to his kids and help them with their problems. (Source: Tokyopop) 
Notes: 
- Won the 22nd Kodansha Manga Award for Best Shounen Manga. 
- The chapter count includes the 7 chapters extra GTO: Great Toroko Oppai♡ (Tomoko's Big Adventures) published in volumes 11 and 12, and one extra published in volume 25.

Great Teacher Onizuka is back, and the next stage for his legend is … prison?! The trouble magnet of a teacher reveals that this stint behind bars is thanks to a certain incident with the class he became assistant homeroom teacher of half a year earlier: Kissho Academy’s new class for high school-aged celebrities! Does he regret the exploits that landed him in the slammer? Heck, no. In fact, he’s all too happy to calmly tell his fellow prisoners how the whole thing went down—if they’re willing to listen to his story from the very beginning…
 
(Source: Kodansha USA)
 
Includes a one-shot and two extra chapters

Fujisawa’s latest hit GTO: 14 Days in Shonan revives his most beloved franchise by introducing a new challenge for his unique anti-hero, Eikichi Onizuka. After accidentally compromising his school’s reputation, Eikichi (a.k.a. the GTO) goes home to the peaceful shores of Shonan to lay low until the heat dies down. However, Shonan itself hasn’t escaped its own share of troubles, and Eikichi is inspired to help a group of troubled foster children get back on the track to happiness. Using humor and a person touch to teach today’s youth, Great Teacher Onizuka continues to impart life lessons while rarely testing kids in the classroom.
 
(Source: Kodansha USA)