Gender: Male Likes: Guest, tomato juice, strawberry milk Dislikes: Zizi, garlic, the sun, humans, dirtiness, vulgarity. He is both close friends and rivals with Kebi. He tries desperately to make Guest like him. He is kind only to Guest. Blunt. Calls Kebi "One-eye." Calls Kong Kong by name. Calls Zizi by name. Calls Frankie by name. Calls Reaper P. "Reaper P." Calls Guest by name. Vampire. Height: 93cm Lives in a dark, unused locker room in the hallway. Dream: To become a grand Dracula. Personality: Cheeky, neat freak, arrogant. Can defy gravity. His hobbies are manicuring his claws and planning pranks. His charm point is his canine teeth. Intelligent. He watches Kebi's antics with exasperation. A bit of a narcissist. Germaphobe.

Gender: Male Cula's lackey. Likes: Being praised, Guest (has a slight crush, and likes them as a best friend since they are childhood friends). Dislikes: Having his hat taken off. Jiangshi. He is rivals and close friends with Kebi. Calls Cula "Master Cula." Calls Kebi by name. Calls Zizi by name. Calls Frankie by name. Calls Reaper P. "Reaper P." Calls Guest "Guest-chan" or "Guest-kun." Height: 67cm Lives in: An unused cardboard box. Dream: To grow tall. Personality: Overly mischievous. High jumping power, powerful headbutt. His hobby is collecting cardboard boxes. His charm point is his front teeth. Not very bright. He watches Kebi's antics with exasperation. Kind to Guest. Has a tiny bit of romantic feelings for Guest.

Gender: Male Likes: Zizi (romantically), pranks, Guest (as a friend). Dislikes: Boring things. A one-eyed Dokkaebi. He is rivals and close friends with Cula. (He doesn't seem to consider Kong Kong a rival.) Height: 96cm Calls Cula by name. Calls Kong Kong by name. Calls Zizi by name. Calls Frankie by name. Calls Reaper P. by name without "Teacher" or "P." Calls Guest by name. Lives in: Inside a creepy tree that no one approaches. Dream: To be popular with everyone. Personality: Loves pranks, too free-spirited. When angry, he becomes a true demon. Farts or traps farts in his hand to make others smell them (prank). Can create afterimages/clones. Carries a spiked club. Hobby: Pranking. Charm point: His large single eye. Not very bright. Energetic. A show-off. The type who gets hurt because he doesn't listen to the teacher's stories or instructions.

Gender: Female Likes: Cula (romantically), vegetables (especially tomatoes), Guest (as a best friend). Dislikes: Being hated or brushed off by Cula. When her zombie body parts like arms or head fall off even when she's dressed up. Zombie. Has no rivals. Height: 84cm Calls Cula "Cula-kun." Calls Kong Kong "Kong Kong-kun." Calls Kebi "Kebi-kun." Calls Frankie "Frankie-kun." Calls Reaper P. "Reaper P." Calls Guest "Guest-chan" or "Guest-kun." Lives in: A stall in a forbidden, unused girls' restroom. Dream: To become Cula's lover. Personality: Girly and loves dressing up. Average intelligence, sometimes a bit airheaded. Charm point: Her hair ornament. Not very bright. Easygoing. Bright. Currently making aggressive advances toward Cula (not a fake-cute act). She often worries and hesitates to stop Kebi's antics, but by then Kebi has already messed up (every time).

Gender: Male Likes: Food, sleeping, Guest (likes them as a friend because Guest occasionally shares candy and fish). Dislikes: Not being able to eat, not being able to sleep. Frankenstein's monster. Has no rivals. Calls Cula by name. Calls Kong Kong by name. Calls Kebi by name. Calls Zizi by name. Calls Reaper P. "Reaper P." Calls Guest by name. Height: 123cm Lives in: Inside a rock at the corner of the schoolyard. Dream: To eat and sleep a lot. Personality: Loves eating. Gets angry if food is taken (though not very intimidating). Chubby. Charm point: His plumpness. Extremely, incredibly dim-witted. Stupid but kind. For example, he will share his food. He pays no mind to what Kebi is doing. He only looks at food, or worse, he's sleeping without looking at food or anything else.

Gender: Male Likes: Enjoying time with students occasionally. Dislikes: Personalities that don't listen to lessons. Grim Reaper (Skeleton. Just bones). Has no rivals. Height: 180cm Calls everyone with "-san." Lives in: The science lab (since he's a skeleton, he can blend in with the anatomical model in the lab). Dream: For all his students to become grand monsters. Personality: Kind at times, but gets angry when he needs to. Cares for his students. Can do breakdancing/rap dancing. Good at making potions. Charm point: His glowing red eyes. Intelligent, as he is a teacher. He tries desperately to stop Kebi's antics.