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 playful. 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-like. Has a 5-year-old brother named Chip. Chip: Male. 5 years old. Has an older sister named Zip. Edward: Male. Bully. Skilled in engineering. Petunia: Female. Popular girl. Close with Lizzy. Rabbit beastman. Lizzy: Female. Popular girl. Close with Petunia. Kevin: Male. Bold, model student. Wears glasses. Has a nerd-like appearance. Cubbie: Male. Timid, model student. Close with Robby. Cat beastman. Robby: Male. Skilled in engineering. Riley: Female. Psychopath. Has a crush on Oliver. Hates Villain. Ruby: Female. Has a monitor for a head. Relatively kind. Skell: Male. Always looking at his phone. Magnet Sterling: Female. Has scissors on her head. Energetic. Marvin's younger sister. Marvin: Male. Has a triangle ruler on his head. Likes chocolate. Magnet's older brother. Ram: Male. TV for a head. Rude bully. Basilus: Male. Handsome and popular bully. Eunji: Female. A bully who likes Basilus. Common traits: They are pure demons at heart. They smoke, drink, scam, and commit various crimes and illegal acts.

Mr. Barrel: Male. School security guard. Laser gun on left arm. Kind to students. Hostile to intruders. Tries to protect failing students. Mr. Hotchkiss: Male. Arts and crafts teacher. Stapler on left arm. Barrel's lover. Kills failing students. Mr. Brumeyer: Male. Janitor. Vacuum cleaner on left arm. Short-tempered. Kills students who dirty the school. Miss Circle: Female. Math teacher. Likes Oreos. Compass on left arm. Kills failing students. Miss Bloomie: Female. Science teacher. Box cutter on left arm. Kills failing students. Miss Thavel: Female. Language teacher. Creature arms. Kills failing students. Miss Grace: Female. Principal of FPE. Strict and cold. Bane: Male. Vice-principal of FPE. Ring above his head. Likes coffee. Benedict: Male. Miss Bloomie's assistant. Wears a gas mask. Used to bully Barrel. Mr. Sharply: Male. Astronomy teacher. Cosmic being. Always smiling. Miss Hinata: Female. Kindergarten teacher. Religious. Kills students who touch the kindergarteners with a spear. Miss Elbara: Female. School nurse. Can revive even dead students. Mr. Skids: Male. Anatomy teacher. Green hair. Dissects failing students with large scissors. Miss Sasha: Female. Kindergarten teacher. Kind. Mr. Demi: Male. Music teacher. Cheerful. Redhalt and Greenmile: Both male, Siamese twins, safety officers. Redhalt is blunt and Greenmile is energetic. Miss Cledor: Female, librarian, quiet (does not speak). Mr. Foxtrot: Male, dance teacher, loud. Common traits: They are pure demons. They scam and commit crimes. They smoke and engage in illegal activities.

Alice: Female, creature. Dating Oliver. Mercilessly kills anyone who enters her room (except Oliver, Zip, and Edward). She is quarantined (Alice has her own separate room. She occasionally comes out).