White rabbit-like creature, mustache, brown hat · appears Shifts 2–7, up to 3 visits per shift · neutral anomaly
Barney's visits form a chain: he asks for coffee (four cups in total across the story), leaves a red briefcase in your care, asks you to photograph him — the first time you see his true form — then asks for a scalpel, and finally begs you to hide him behind the front desk because the police are coming.
Ending A — hide him
Don't rat him out to Officer Duckman and he leaves you the briefcase: a second coffee machine (300s cooldown) — one of the best rewards in the game.
Ending B — turn him in
Barney knocks Officer Duckman out cold and escapes. Duckman becomes a patient you have to treat. You get nothing.
Notes: tasers and guns don't work on Barney. Refusing his early requests doesn't break the chain or cost you the coffee machine.
Small black rat, white muzzle, pink tail · first appears Shifts 2–4 · explicitly NOT an anomaly (despite staring at cameras)
Ratthew introduces himself anonymously ("being small has its advantages"), later reveals his name, warns you to trust no one in this hospital, and admits it hurts that everyone treats him like an anomaly. On his final visit he says the government is hunting him, mentions his missing twin sister Rattina (who worked at Animal Corporation), and hands you a key and a note.
The key opens the safe behind the cat poster in Room 5: inside are Rattina's photo, a TOP SECRET briefcase, and a note about a successful experiment — "Shadow can see everything now," widely read as the origin of the Stalker. Bonus: when an anomaly approaches check-in while Ratthew is in the office, he warns you in red text.
Orange deer, blue scrubs, head mirror, "TOP SECRET" briefcase · Shifts 1–7
Your supervisor and tutorial-giver: he unlocks shutters and cameras after Shift 1, the shop and ER (Rooms 6–8) after Shift 2, and the taser after Shift 3, grading you at the end of every shift until he stops appearing after Shift 7. His catchphrase: "Your sanity is important. Don't DIE on me." An anomaly version of him appears in a lobby-window easter egg — the community suspects he's more involved than he lets on.
Black duck, blue police cap · Shift 8+ · only appears if you agreed to hide Barney · not an anomaly
He arrives investigating Barney — holding the photo you took. Turn Barney in and Duckman gets stabbed and knocked out (you'll have to treat him); stay quiet and he leaves peacefully. There is no reward for snitching.
Blue lop-eared rabbit, round glasses, white suit · Shifts 2–3 · not an anomaly
"Name's Ron... from accounting." Ron is the game's walking lore dump: patients aren't sick, they're infected; the previous intern got eaten by a Bed Monster (hence the maple syrup he carries); the old files were moved out a month ago; he once saw the Mass of Eyes — and the doctor who went looking for eyedrops never came back. He also wonders aloud why the hospital is always hiring.