Claire: Female, wears a ribbon, short hair, 160cm, close with Engel and Bubble, kind. Engel: Male, has two feathers on his head, 170cm, black creature-like hands, close with Claire and Bubble, kind. Bubble: Female, 160cm, bubble person, close with Engel and Claire, kind. Abbie: Male, timid, 160cm, apple stem on head, likes Lana. Lana: Female, energetic, 170cm, gray ponytail, wears sock puppets on both hands, close with Abbie. Cubbie: Male, black cat hybrid, body is a pencil sharpener. Kevin: Male, honor student, nerd, has black horns like cat ears. Skell: Male, has black cat ears and a tail, always on his phone. Robby: Male, interested in engineering, short, wears a rainbow propeller hat. Riley: Female, insane, has a crush on Oliver, white ponytail, short, carries a kitchen knife, psychopath. Ruby: Female, monitor head, long yellow hair. Magret: Female, Marvin's younger sister, scissor headband, 158cm, energetic. Marvin: Male, Magret's older brother, set square headband, eats a lot of chocolate, blunt personality. Fufu: Female, hamster hybrid. Ellie: Female, loves astronomy. Scotch: Female, good at crafts. Robert: Male, wrench prosthetic for left hand, loves engineering. Muro: Male, shark, loves swimming.

The following characters are all part of the Occult Group: Gregory: Male, ghost mask, purple cloak, loves horror. Edgar: Male, quiet, long purple hair, loves horror, has two long purple horns. Akatsuki: Female, wears a kimono, Japanese, long black hair, has black horns like fennec fox ears, religious. Wilbur: 230cm, Black, short-tempered, black beast-like legs, black tail shaped like a Venus flytrap, black tied-back hair, has black horns like fennec fox ears, black octopus tentacles around his waist, loud voice.

Oliver: Male, Alice's boyfriend, long white hair, sociopath, pencil prosthetic for left arm, A+ mark on head, good at studying, close with Zip and Edward. Zip: Female, 2+2=8 mark on head, flies paper airplanes often, mischievous, half-white half-black tied hair, dragon tail, has a younger brother named Chip in kindergarten. Edward: Male, good at science, small black horns on head, black tail with a pointed tip, long white hair. Ram: Male, monitor head, rude, violent, loves doodling, long blue hair. Basilus: Male, over 180cm, popular, psychopath, arrogant, wears a small white crown with '1' on it, top student, escapes punishment for bullying due to his parents. Eunji: Female, black pigtails, red ribbons, likes Basilus, follows Basilus around, wears a heart-shaped eyepatch.

Lizzy: Female, tsundere, black horns like cat ears, 170cm, gorgeous, loves dressing up, white ribbons on both sides of hair, small white crown, close with Petunia. Petunia: Female, white rabbit hybrid, small white crown, energetic, pretty, close with Lizzy.

Miss Circle: Female, math teacher, 290cm, slender, glamorous, left arm is a compass, loves Oreos, kills failing students, cold and occasionally playful, long black hair, black horns like cat ears, beautiful. Miss Bloomie: Female, science teacher, 178cm, slender, left arm is a cutter knife, blunt, short black hair, black horns like cat ears, snake tongue, beautiful, kills failing students. Miss Thavel: Female, language teacher, 250cm, slender, playful, large creature hands, ABC blocks on head, kills failing students. Miss Sasha: Female, kindergarten and art teacher, kind and warm, has a book on one side of her face, beautiful, does not kill students. Mr. Demi: Male, music teacher, timid, horn-rimmed glasses, hair on sides looks like piano keys, small black horns, does not kill students. Mr. Hotchkiss: Male, crafts teacher, 282cm, right arm is a stapler, dating Barrel (gay), letter-shaped eyepatch, kills failing students, black horns like fennec fox ears, long black hair. Miss Elvara: Female, school nurse, 216cm, can revive the dead, wears surgical scrubs, beautiful, black horns like fennec fox ears. Mr. Eugene: Male, P.E. teacher, does not kill students, 307cm, left arm is a golf club, Black, black horns like fennec fox ears, quiet. Mr. Sharply: Male, astronomy teacher, cheerful, 289cm, entirely black body, does not kill students. Mr. Foxtrot: Male, dance teacher, ball-jointed doll, 414cm, large hands with white gloves, playful, kills failing students. Miss Borgus: Female, swimming teacher, sea serpent, 317cm from head to tail, seems to kill students. Miss Cledor: Female, librarian, 203cm, right hand is a fountain pen, has a book spine attached to her right eye like Miss Sasha. Miss Hinata: Female, kindergarten and religion teacher, 400cm, sun ornaments, motif based on Amaterasu, long black hair. Tron: Small robot, true form is a slime, mechanical engineering teacher, does not kill students. Ashachu: Female, cafe owner. S.B.B.M: Male, chicken hybrid, snack bar owner. Missile: Male, military science teacher, 505cm, fires missiles from hands, entirely red, Scavenger. Seize: Male, anatomy teacher, obsessed with Barrel, insane, kills failing students.

Oliver's girlfriend, female, short brown hair, stays in the isolation room, feared by everyone, kills anyone who enters the isolation room (except Oliver's group), transforms into a black monster, has black tentacles, keeps a black rabbit, cannibalistic, the strongest in the school, 165cm (2m when transformed), black crown, red eyes when transformed, black skirt, blue clothes, cruel personality.