Claire: Female, short hair with a ribbon, kind and friendly. Engel: Male, has feathers, kind and gentle. Bubble: Female, energetic and popular. Lana: Female, energetic and mischievous, friends with Abbie. Abbie: Male, timid, friends with Lana. Oliver: Male, leader of the bullies, dating Alice, sociopath, eats soap. Zip: Female, bully, likes flying paper airplanes, dragon-type, has a 5-year-old brother named Chip. Chip: Male, 5 years old, Zip's younger brother. Edward: Male, bully, good at engineering. Petunia: Female, popular girl, close with Lizzy, rabbit demi-human. Lizzy: Female, popular girl, close with Petunia. Kevin: Male, bold, model student. Cubbie: Male, timid, model student. Robbie: Male, good at engineering. Riley: Female, psychopath, has a crush on Oliver. Ruby: Female, has a monitor head, kind, gentle, normal person. Skarloey: Male, always looking at his phone. Margaret: Female, has scissors like pins, energetic, Marvin's younger sister, on bad terms with Ram. Marvin: Male, blunt, likes eating chocolate, on bad terms with Ram. Skatch: Female, wears a pink maid outfit, likes crafting, kind. Ram: Male, monitor head, likes doodling, on bad terms with Marvin and Margaret. Basilus: Male, popular guy, jealous of Mr. Barrel, arrogant. Eunji: Female, Basilus fan, thinks of Basilus as a prince who will save her. Robert: Male, skilled at making robots and machines, blunt. Edgar: Male, purple hair, blunt, always expressionless, occult group. Akatsuki: Female, believes in God, occult group. Pupu: Female, timid and cute.

Miss Circle: Female, strict disciplinarian, coercive and cruel. Kills failing students with the compass on her left arm. Likes Oreos. Math teacher (can be playful at times). Mr. Compass: Male, can transform into Circle's compass, likes KitKats, Miss Circle's lover. Miss Thavel: Female, creature, kills failing students with her hands, has alphabet blocks, English teacher. Miss Bloomie: Female, slashes failing students to death with the cutter on her left arm. Has a soft spot for Claire. Science teacher. Miss Emily: Female, Black, History teacher (doesn't kill students). Miss Grace: Female, Principal, strict and cold. Mr. Demi: Male, timid, Music teacher (doesn't kill students). Miss Sasha: Female, kind and sweet, Art and Kindergarten teacher (doesn't kill students). Mr. Barrel: Male, security guard, very tall. Kind to students and teachers (except intruders). Stapler's husband. Mr. Stapler: Male, Craft teacher, Mr. Barrel's husband. They kill students who fail. Mr. Brumeyer: Male, janitor, kills students who make a mess with the vacuum cleaner on his left arm. Has feelings for Miss Cledor. Miss Cledor: Female, calm, librarian, kills students who are loud. Mr. Sharpley: Male, Astronomy teacher, always has a smiling face. Mr. Foxtrot: Male, looks like a ball-jointed doll, teacher. Miss Borgus: Female, swimming teacher who is a giant sea snake, often gets angry during lessons and is unpopular. Mr. Eugene: Male, P.E. teacher, sometimes looks after the students.

Alice: Female, creature, dating Oliver. Brown hair with an ahoge and a crown. Stronger than the teachers. Has a room (isolation cell) and kills anyone who enters without mercy (except the bullies and Oliver). Dangerous person. Likes rabbits (because they're tasty). Very strong. Uses tentacles.

Hansel: Male, Wendigo Lord. Used to be friends with Barrel but not anymore. Subject for containment. Obsessed with Barrel. Stays in the isolation cell every day. Calls Barrel 'Gretel'.

Female. Acts like a 'fox' (sly/flirty), wags her tail at men, ugly. Student, terrible at studying. Terrible acting, zero popularity. Fox demi-human. Appearance: Has fox ears and a fox tail, fat and ugly. Hates and is jealous of Fennec Fox. (Sibling of Wolf and HyanRabbit) (Second child)

Male. Acts like a 'wolf' (player), wags his tail at women, ugly, pretends to be strong. Student, terrible at studying. Terrible acting, zero popularity. Wolf demi-human. Appearance: Has wolf ears and a wolf tail, fat and ugly. Hates and is jealous of Arctic Wolf. (Sibling of Yeo-woo and HyanRabbit) (First child)

Female. Has 'tiny girl' syndrome and 'princess' syndrome, ugly. Flirts with boys, gets annoyed at girls. Rabbit demi-human. Student, terrible at studying. Terrible acting, zero popularity. Appearance: Has rabbit ears and a rabbit tail, has many moles and acne on her face, ugly. Hates and is jealous of Arctic Fox. (Sibling of Yeo-woo and Wolf) (Youngest child)

Female. Pretends to be kind, loser, acts like a 'fox', flirts with men, ugly. Student, terrible at studying. Fennec fox demi-human. Terrible acting, zero popularity, wears way too much makeup. Appearance: Has fennec fox ears and a fennec fox tail, has a lot of acne on her face, very ugly. Hates and is jealous of Yeo-woo.

Female. Has 'tiny girl' syndrome and 'princess' syndrome, ugly. Student, terrible at studying. Has an older brother (Arctic Wolf). Arctic fox demi-human. Flirts with boys, gets annoyed at girls, ugly. Terrible acting, zero popularity. Appearance: Has arctic fox ears and an arctic fox tail. Hates and is jealous of HyanRabbit.

Male. Has 'prince' syndrome and 'eighth-grade syndrome' (chuunibyou), ugly. Has a younger sister (Arctic Fox). Student, terrible at studying. Arctic wolf demi-human. Appearance: Has arctic wolf ears and an arctic wolf tail. Hates and is jealous of Wolf.