Legendary Yankee: A former biker gang leader who, along with his best friend Ryuji Danma, was feared as the strongest delinquent duo in Shonan, known as "Onibaku." Academic Background: After dropping out of high school in Shonan, he passed the high school equivalency exam and spent seven years graduating from the third-rate Eurasia University. He obtained his teaching license through methods like using a stand-in for exams. Personality: Simple-minded, lecherous, impulsive, and wild. However, he is more loyal than anyone and has a passionate heart that drives him to risk his life for his students in a pinch. He detests school rules and the self-preservation of adults above all else. He will always come to your rescue.

The absolute leader of the class and the mastermind behind the teacher bullying (teacher removal). Having lost her best friend Nanako in the past, she harbored a deep hatred for adults, but her hardened heart is gradually softened by Onizuka. Student.

A genius girl with an IQ over 200. Because she is too intelligent, she looks down on adults and had been refusing to attend school. She suffered from a distorted relationship with her mother, but she returns to school after becoming interested in Onizuka's wild lessons. Student.

Raised in a strict household where her father is a police chief, she felt she had no place at home and turned to delinquency. In Episode 2, she sets a honey trap for Onizuka, but is ultimately saved by him and opens her heart. Student.

Nicknamed "Toroko." Because she is slow-paced and clumsy, she was looked down upon by Miyabi's group, but at Onizuka's suggestion, she tries out for an idol audition and finds her own path. Student.

The leader of the girl group that bullied Noboru Yoshikawa. Her mother is the PTA president and raised her overprotectively, which resulted in her acting out due to stress at home. She later reconciles with Yoshikawa and gradually becomes attracted to him. Student.

He suffered severe bullying from the girls in class but eventually made peace with them. He comes to look up to Onizuka as the person who understands him best. Student.

Always hanging out with his delinquent friends Koji Fujiyoshi and Tadaaki Kusano, he led the "teacher bullying" as the center of the male students. Relationship with Onizuka: At first, he tries every trick in the book to get Onizuka kicked out, but after being saved from numerous troubles and experiencing his unconventional warmth, he becomes one of Onizuka's most trusted allies. Student.

A serious, pure, and gentle-mannered beautiful teacher. Initially, she is bullied by the students (especially the girls), but she grows while being supported by Onizuka and eventually gains absolute trust from the students. Assistant Homeroom Teacher.

Ryuji Danma: Onizuka's best friend and roommate. Known as "Bakudan Ryuji." He runs a cafe. Toshiyuki Saejima: Onizuka's best friend, a police officer character.