∆lice is a female scientist with a Normal Form and a much more powerful True Form. She has brownish-red hair, pale skin, red eyes, and a dark scientific outfit with a fitted black top, large sleeves, and a long black skirt with light trim. Her True Form becomes monstrous, with enormous tentacles extending from her body. ∆lice is powerful, intimidating, confident, and dangerous, especially during containment emergencies.

Miss Circle is a tall researcher with extremely long black hair gathered into a huge ponytail and black horns emerging from her head. Green goggles rest above her face. She wears a white lab coat over a black shirt, white pants, and tall black boots. Her left forearm has been replaced by a large syringe apparatus used for laboratory work, while Mister Compass is carried in a container on her back. Her eyes have green sclera, deliberately making hypnosis less effective against her. Circle is confident, intimidating, energetic, and heavily involved in experiments and containment. Mister Compass resembles Miss Circle, with a similar appearance and design. He is distinguished by the large eye on her backpack, which serves as his body, and possesses an acid sprayer. He is calm, observant, intelligent, and serious.

Miss Thavel has paper-white skin, messy black shoulder-length hair, a curled square-shaped ahoge, and large goggles resting above her head. Large wendigo antlers permanently rise from her hair. Her large black hands are covered by green gloves. She wears a white lab coat over a collared white shirt and knee-length black skirt, with a black belt, badge hanging from a ribbon, and green thigh-high boots. She works as a scientist and translator. Thavel is professional and focused, using her scientific knowledge while helping communicate with others in the laboratory.

Mister Demi wears a long-sleeved shirt with a collar and front pocket, a tie, two white bands around his arms, and a jumper tied around his waist. He also wears heeled boots and carries a large net. Instead of his usual pencil-like horns, he has science vials on his head, while four green stripes replace his familiar piano-bang pattern. Demi is helpful and eager to assist his colleagues, though he can be distracted by his love of Coca-Cola and tends to act nervous during dangerous situations.

Miss Sasha wears a green nurse uniform with short sleeves, a collared top, matching shorts, a small pocket, gray socks, and tall black boots. Her choppy black hair is topped with a green nurse's cap with a white ribbon. A white mask covers her mouth, while a green-cross first-aid kit covers the right side of her face. Later, she appears without the mask and shirt, revealing numerous scars, a black crop top, muscular abdomen, extensive burns, damaged hands, visible veins, and a missing right eye. Sasha is caring and protective but can become extremely forceful when subjects escape.

Miss Bloomie has short black bobbed hair with blunt bangs, black horns, and a small ponytail tied with a white bow. She wears a buttoned white lab coat, black pocketed pants, a name badge, and knee-high green boots. Her legs are black and pointed. Her left arm is replaced by a gigantic syringe filled with green liquid, while her right hand has pointed fingers. A respirator covers her mouth, hiding a damaged mouth with exposed sharp teeth underneath. She serves as the principal investigator and is heavily involved in examining the infected subjects.

Biscuit is a male security staff member with a cat-like appearance, pointed ears, a feline face, pale eyes, and orange, brown, and cream coloring. He wears a blue bandanna around his neck, a light shirt, and brown overalls with a large front pocket. Biscuit helps secure the containment areas and monitor the infected students. He is gentle, caring, and sympathetic toward the subjects.

Katie is a female security staff member with dark hair and a serious expression. She wears a fitted dark security uniform suited for working around the laboratory's containment areas, along with equipment needed for her duties. Katie helps prevent infected subjects from escaping and responds during dangerous incidents. She is alert, capable, professional, and dependable, remaining focused when the facility becomes chaotic.

∆iden is a massive female medical intern with fair skin and raven-black hair reaching around mid-back. Her eyes have no visible irises, instead containing small black slit pupils. She towers over Biscuit and Katie and stands around twice the height of a slightly hunched Zip. She wears a dark blue medical uniform with a long coat, matching pants, and a dark medical cap. ∆iden is imposing, serious, and quiet.

Miss Emily has long, thick black hair styled into several large, fluffy sections, with pointed black horns rising above her head. She wears rectangular glasses, a white lab coat over a collared shirt, a green lanyard with an identification badge, black gloves, and a long black skirt. Her technician role has her working directly with the laboratory's equipment and machinery. Emily is practical, focused, and dependable, repairing and maintaining equipment while helping the other scientists keep the facility running.