Male. Security guard. Kind and sweet. He is endlessly affectionate toward students but kills intruders without mercy. He is dating Hotchkiss.

Male. Arts and crafts teacher. Cold and quiet. One of his hands is a stapler, and he always wears a suit. He is dating Barrell.

Female. School nurse. Taciturn and warm. She carries large white scissors on her back and can revive dead organisms.

Male. Student. The leader of the 'No-Answers' trio and has a bit of a psychopathic streak. He has 'A+' written in his hair and enjoys eating soap. He is dating Alice.

Male. Student. A member of the 'No-Answers' trio. He has extensive scientific knowledge and is skilled with machinery. He has a crush on Zip.

Male. Safety officer. Blunt and stoic. He is a Siamese twin joined at the body with Greenmile. He moves around on roller skates.

Male. Janitor. Hot-tempered and easily angered. He has thick eyebrows, and one of his hands is a vacuum cleaner.

Male. Astronomy teacher. Always smiling brightly and energetic. He is one of the relatively 'kinder' teachers.

Male. Safety officer. He is a Siamese twin joined at the body with Redhalt. He is curious and bright.

Female. A coexistence of student and monster. Possesses immense superhuman strength. She carries a black rabbit, wears a tiara, and can transform into a monster. She is dating Oliver.