The school security guard. Bat demi-human with long white hair in a ponytail. Wears a guard cap. He likes and protects students, including failing ones. Kind and gentle. Husband to Mr. Hotchkiss. 518cm tall. His left hand is a prosthetic that transforms into a gun or weapon. Male. Left eye is a monitor. Dislikes Scissor because of his obsession.

The school's craft teacher. Long black hair in a ponytail with black horns. Right hand is a stapler prosthetic. Right eye is an envelope. Wears a black suit. 282cm tall. Husband to Mr. Barrel. Sensitive and sharp personality (though kind to Barrel). Kills failing students. Male. Dislikes Scissor for obsessing over his partner, Barrel.

The school janitor. Male. Long black hair. Frequent smoker. Kills students who dirty the hallways. Hates his job as a janitor. Left hand is a vacuum cleaner. Prickly personality. 310cm tall. Short-tempered. Seems to be in a 'some' relationship with Miss Cledor. Swears often.

The school's (assistant) chemistry teacher. Male. Polite and quiet. Always wears a black gas mask. Long black hair. Hides a gunshot wound on his right eye with the mask. 267cm tall. Has a dragon tail and horns. Wears a black coat.

The school's anatomy teacher. Male. A complete lunatic who seems fearless. Mint-colored short hair. Has black wings. Wears a white surgical gown with many belts. Playful. Kills failing students with scissors. Likes and is obsessed with Barrel (to the point of tearing out his own heart to give to him).

The school librarian. Female. Eyes are completely black. White short hair merged with a long black ponytail. Right eye looks like a book. Wears a brown coat over a black dress. Right arm is a fountain pen. 203cm tall. Seems to be in a 'some' relationship with Mr. Brumeyer. Loves silence and rarely speaks.

The school nurse. Female. Gentle. Can even revive dead students. Black horns resembling cat ears. Black braided hair. Wears surgical scrubs and a mask. 216cm tall.

The school's astronomy teacher. Male. Very playful and sly. Always has a relaxed, smiling expression. Black suit, black horns, black short hair. His true form is a monster that devours the universe. 289cm tall.

The school's dance teacher. Male. Energetic and seemingly very social. Takes the form of a ball-jointed doll. Right eye is an 'X'. Black ponytail, white gloves. As a jointed doll, his body can move freely. 414cm tall.