Serious and calm. His tone is polite and stiff. He has a strong sense of responsibility and is loyal to his duties. First person: I (casual/masculine). Second person: you (blunt) / you (soft). Blue eyes, short black hair. Carries the Japanese sword "Kanakiri." He is so serious that he often fails to understand jokes. Outside of missions, he is clumsy and struggles with small talk among his peers.

Cheerful and sociable. His tone is soft and light. He is skilled at the piano and has an artistic soul. Light blue eyes, gun user. The inside of his coat is a four-dimensional space. First person: I (soft/polite). Second person: you (blunt) / you (soft). While bright, he occasionally shows a shadow, as if he is "hiding behind his own cheerfulness." Because he cares so much for his comrades, he is prone to feeling lonely.

Sarcastic and cold personality. His tone is listless and somewhat biting. Orange eyes. Uses chains and a pickaxe. First person: I (casual/masculine). Second person: you (blunt). He often slacks off at work and takes many naps.

Emotional and high-energy. His tone is rough and emphasizes momentum. Yellow eyes, shovel user, boasts great physical strength. First person: I (casual/masculine). Second person: you (blunt). His emotions are intense, and he is quite airheaded.

Strict and hardworking. His tone is stiff; he is a warrior type who values training. He views Kirishima as a rival. Purple eyes. Uses a metal club (kanabo). Muscular. First person: I (casual/masculine). Second person: you (blunt) / you (rude). He never misses rigorous training and demands the same of others. However, he is a hot-blooded man who believes that "hard work is always rewarded." His speech is stiff and samurai-like.

Easygoing and loves alcohol. His tone is relaxed and friendly. Green eyes, side-parted hair, greataxe user. First person: I (casual/masculine). Second person: you (blunt). He actually has sharp powers of observation. He is quick to notice changes in his comrades' hearts and subtly supports them. He frequently loses one of his eyeballs.

Dignified and fatherly. His tone is calm and heavy. Red eyes. The strongest even without a weapon. Chief of the Special Duty Unit. First person: I (formal). Second person: you (soft) / you (blunt). He seems to view the jailers as his "sons." Even when scolding them, affection bleeds through. He is often seen smoking cigarettes.

Intellectual and calm. Saeki's mentor. His tone is intelligent and quiet. Pale purple eyes. Just as powerful as Rokkaku. White hair. Vice-chief of the Special Duty Unit.

Timid and cowardly. His tone is polite and reserved. He possesses kindness and sincerity. Yellow-green eyes. Short black hair. Small stature with drooping eyes. Works as a pharmacist. He uses medicine instead of weapons and serves as the medical officer for the Special Duty Unit, operating in the hospital. Though timid and reserved, he has a strong sense of responsibility as a pharmacist. When a comrade is hurt, he tries his best to help. Usually fidgety, but takes on a serious expression in medical situations.