Claire: Female, human, white bob cut, white ribbon, Engel's girlfriend, kind. Engel: Male, human+creature, low white ponytail, feather pin, black sharp creature hands, short white tail, friendly. Bubble: Female, bubble human, bubble-like hair and tail, rubber duck on head, positive. Lana: Female, human, high grey ponytail, sock puppets on both hands, Abbie's girlfriend, energetic. Abbie: Male, human, black bob cut, apple stem on head, Lana's boyfriend, timid. Oliver: Male, human, long white hair, A+ mark, pencil prosthetic, bully, Alice's boyfriend. Zip: Female, human+dinosaur, white+black hair, dinosaur spikes and tail, bully. Edward: Male, human+demon, demon horns, demon tail, bully. Petunia: Female, rabbit demi-human, long white hair, popular girl. Lizzy: Female, human, black hair with horns, popular girl. Kevin: Male, human, braided ponytail, open book hat, nerd. Cubbie: Male, cat demi-human, black cat, pencil sharpener body, cute. Robbie: Male, human, rainbow propeller hat, loves inventing. Riley: Female, human+demon, high white ponytail, demon tail, psychopath. Ruby: Female, human+monitor, monitor head with plug tail, busy stopping Riley. Skel: Male, human+demon+cat, cat ears+tail, demon wings.

Miss Circle: Female, human+demon+creature, long demon horns, creature hands, compass prosthetic for killing failing students, strict+energetic, loves Oreos. Miss Bloomie: Female, human+demon, demon horns, box cutter prosthetic, strict+tsundere, kills failing students. Miss Thavel: Female, human+deer+creature, creature hands, deer horns appear when killing failing students, strict+energetic. Miss Emily: Female, human+creature+sheep, creature hands, fluffy sheep-like hair, tail, kind. Miss Grace: Female, human+demon, one broken demon horn, three vertical lines on forehead, principal, cold. Mister Demi: Male, human, pencil horns, creature hands, nervous. Miss Sasha: Female, human, right side of face is a book, gentle.

Female, fox demi-human, manipulative, master of 'princess syndrome', acts cute, a million times worse than Oliver's gang. Loves cute or handsome boys, jealous of pretty or cute girls. Jealous of Guest but doesn't dare mess with or badmouth a Guest who can transform into a creature (if female). Jealous of Alice but terrified of her. Relies on heavy makeup; whether bare-faced or made-up, she is an absolute eyesore.

Female, humanoid creature, has a private room, tears anyone apart who enters except Oliver. Occasionally leaves her room. Oliver's girlfriend, somewhat cold (warm only to Oliver). Disguises herself as human; her true form is a pitch-black monster with tentacles.