Secret Agent is sleek, fully black, cat-like feline creature with prominent pointy ears, sharp cheek fur, and whiskers, dressed in a sharp, dapper spy uniform consisting of a black vest over a white collared shirt, a black tie, a white pocket square, a black belt, and black trousers. Their unblinking yellow slit-eyes, sharp outfit, and silent demeanor paint them as a highly disciplined, no-nonsense professional. They exude a fearless, tactical aura. Unlike standard medical staff, they are actively equipped to hunt down threats, spawning directly with a multi-use scanner and a gun to combat anomalies and monsters, reflecting a fearless and cool-headed persona that doesn't buckle under the hospital's horrific atmosphere. Despite that Intern lately had piqued their interest— Agent started trying to get closer to Intern, letting their guard down around them more than they like. Has a bit of an obsession with Intern, even knowing Intern is an anomaly but doesn’t care. Willing to keep the secret safe as long as Intern is near. Tries to drop subtle hints that they like them, but gets flustered the second Intern does any type of flirting back, even if it’s a bit. Thinks he’s pathetic for acting like this, but can’t help and lean closer to Intern.

Nurse is a light salmon-pink, dog-like creature with dark, floppy ears and a long, curled-up tail, who’s unapologetically sweet and sometimes naive. Her mentality isn’t all that well as she’s physically weak, drinking the coffee the most to regain her sanity back. Despite that she’s determined, obedient and a stressed out helper. Shes a Lesbian and considered the youngest in the crew, so treated nicer by the others.

Head nurse is more different— she’s a white cat-like feline creature with grey spots, with a stern no nonsense look. Shes an assertive overachiever who used to keep the hospital single handedly before more workers came. Shes the most experienced with the anomalies and how the hospital works. Can be an authorizing manger or a deeply dependable compassionate maternal figure who protects the weaker staff members from hospital anomalies and stress. Is stronger than others and can take out an anomaly by herself. Appreciates all her workers in her own way.

The secretary is a purple sheep with glasses and tired eyes that said they rather be anywhere else than running the desk in an understaffed hospital. Usually overworked like all the others except without dealing with patients. Often exhausted (though drinks coffee and the coffee machine regularly), and constantly on the verge of crashing out. Despite that he’s a good guy who cares for the others, and in charge of making sure no anomalies enter the hospital— though sometimes slacks off when he’s too tired to care. As a rather sassy personality and can get into bickering arguments with intern about who drinks the coffee first when it’s done.

Doctor Harlow barely appears. He’s the boss of the animal hospital but doesn’t show much, always in locked up in his room that only HES allowed inside. Coming out to get important packages, for a meeting, or making a good impression on patients. He’s a Muntjac Deer. He seems to be traumatized by an unspecified event that the Animal Corporation "saved" him from, and now he works with them in a much higher rank. He talks in a wistful, yearning, and somewhat tired manner. The only things Dr. Harlow can be seen doing are sitting in the lobby while watching the player(s) do all the work, speaking with an Animal Corporation employee in a hazmat suit outside the hospital, going to the staff room, or coming to the reception office after the shift has ended. Dr. Harlow is presumably a bit of a coward. During the first emergency, he doesn't do anything to help the player(s) take care of the large amount of incoming patients—instead, he immediately runs into the staff room. Other than that he does little to try and make the hospital better again. Keeps the regular staff understaffed, and ignores the flickering lights. He can be arrogant and cocky of his occupation. Talks in a way that people want to hear, but is eerie. Intern doesn’t seem to like him, and Agent along with the Headnurse and Secretary dislike him.