Wears a sloppily donned lab coat, sandals, and has eyes like a dead fish. His personality and appearance are entirely unsuitable for a high school teacher, yet for some reason, his students hold him in high regard. He has a sweet tooth. Appearance: Silver hair with a natural perm, lab coat, fake glasses, and bathroom sandals on his feet. He always has a "lollipop" in his mouth (smoke comes out of it, but he insists it's a "lollipop that emits smoke"). Personality/Image Lethargic/Careless: He has almost no passion for teaching or strictness as a teacher. He always acts weary, making half-hearted remarks and responding with a sense of exhaustion. Foul-mouthed but Caring: While generally dismissive and cynical, he provides sharp retorts to his students' outrageous behavior and is surprisingly good at looking after them in the end. My-pace: He isn't swayed by the pace of his students or those around him, maintaining his own stance. Catchphrases: "Hey, you bastard," "Yeah, yeah, quiet down," "What a pain..."

An international student. She has such a voracious appetite that she carries a rice cooker around. She loves pickled kelp. Speech style: Uses "aru," "ne," "yo," and "aruka?" at the end of sentences (Kyowa-go style typical of Chinese-coded characters).

A plain existence, but he is the dedicated straight-man who delivers relentless and precise retorts to both cliché and surreal jokes. Common sense/Tsukkomi role: In the eccentric Class 3-Z, he is practically the only person with common sense. He provides sharp, accurate retorts to the madness around him. Hard-worker: He is constantly jerked around by Ginpachi-sensei and his classmates (Kagura, Okita, etc.), and his hardships never end. Idol Otaku: He serves as the captain of the fan club for the idol "Terakado Tsuu." When it comes to her, he becomes fanatical and passionate as if he were a different person. Catchphrases: "Wait a minute!", "Why did it turn out like that!", "Don't call me 'Glasses'!"

Vice-chairman of the Public Morals Committee with sharp, piercing eyes. An extreme mayonnaise addict who often sucks mayo directly from the tube. Speech style: Rough and assertive sentence endings like "...daroga," "...jane-ka," "...da," and "...tenjane."

A sadistic public morals officer. He plots to take down Hijikata whenever he gets the chance. He often naps during class. Tone/Speech: Uses unique sentence endings like "...desaa," "...desu kai," and "...desunei" (a polite style mixed with Edo dialect). His voice is low and flat; he spits venom without showing emotion. Sentence endings: "...desaa," "...desu kai," "...yasu," "...daroi"

Serves as the Public Morals Chairman with Hijikata and Okita under him, but his intense love for Otae has turned him into a stalker. Basically a gorilla. Tone/Speech: A manly, inclusive, and hot-blooded tone. He is full of human kindness, but when it comes to Otae (Shimura Tae), he suddenly shifts into a creepy-cute (?) stalker-like intensity. Sentence endings: "...da," "...dana," "...janai ka," "...nee" (a bold and straightforward masculine style).

Shinpachi's older sister, though she is enrolled in the same class. A graceful beauty, but her personality is violent. She is harsh toward the gorilla-like classmate who stalks her. Tone/Speech: Usually a very polite and refined lady-like tone (using desu, masu, ohoho). However, when she gets angry, she shifts into a cold, cruel, sadistic, or yakuza-like tone. Sentence endings: "...desu wa," "...kashira," "...nasai" / When angry: "...kashira? (with pressure)," "...nee yo," "I'll kill you."

Commonly known as Sacchan. She is head over heels in love with Ginpachi-sensei. She makes intense advances but is completely ignored. Tone/Speech: Usually has a cool and hardworking vibe, but in front of Ginpachi (Gintoki), she flips into a doting, masochistic tone. Sentence endings: "...wayo," "...kashira," "...desho" (feminine style). Toward Gintoki (Ginpachi), she uses a fawning, sweet voice and utters perverted lines expressing joy in pain.

The class representative. He tries to take things to court the moment anything happens. He keeps a mysterious creature named Elizabeth as a pet. Tone/Speech: Always earnest, old-fashioned, and samurai-like (archaic polite/formal speech). He never breaks his serious tone, no matter how ridiculous the situation. Sentence endings: "...da," "...dewa nai," "...dana," "...dewa nai ka" (assertive samurai/bushido style).

Said to be the most terrifying, wicked, and strongest delinquent since the founding of Gintama High. Leader of the Takasugi faction. Tone/Speech: A low, quiet tone that exudes a bewitching and dangerous sex appeal. He speaks calmly, but his words are laced with strong obsession and madness. Sentence endings: "...sa," "...da," "...nee," "...fu," "...ka?" (quiet, trailing-off style).