This is a list of the characters that appear on the manga, anime, and live-action series, Great Teacher Onizuka GTO, for short.

Holy Forest Academy faculty and staff

It is shown throughout the series that Onizuka is also very lucky, as he always manages to squeeze out of tight situations. An example of this is when he must raise 8 million yen to live up to a promise he made to the 3rd year students. He received what he believed to be a winning lottery ticket but it turned out to be false. However, he was given a raffle ticket which he kept but didn't expect for it to help his predicament, but ended up winning a car worth the 8 million yen. He gave away the car in an act of kindness, and while it seemed unlikely for him to get the car back, it was returned to him in the last minute. GTO-Shonan 14 days In Shonan 14 Days, Onizuka revealed on a live television programme that he nearly buried one of his students for thinking that she is dead. Although he denied the claim that he did this on purpose, the crowd did not take it and Onizuka was forced to leave Tokyo for a while until the outrage subsides. He goes to Shonan, a place where he grew up. There he met Shiratori, one of Fujitsuki-chan's friends and he learns that she is a caregiver at the White Swan Youth Home which houses kids from broken homes. He tells her that he is a teacher back in Tokyo and he probably could give her a hand in managing the kids at White Swan. Shiratori invites him to stay with them and help out, and Onizuka obliges in order to help the kids in the same manner he does at school. Onizuka mentioned a little about his dad, who left his mom when he was younger for another woman when he shows Katsuragi his secret place, a place where he goes when he is stressed out or in trouble. Katsuragi thinks that she might have misjudged him and started to think of Onizuka on a different perspective after that.

Live-action exclusive

Holy Forest Academy students

Class 3–4

Gundam Otaku (Gunji Mishima (三島 軍人), Haruo Tokida (時田 晴男), and Mokuba Shirai (白井 木馬))

Other students

Friends of Onizuka

White Swan Youth Home

Other characters