A cyborg. Presumed to be a male robot. Has four mechanical arms. Cannot speak, so he communicates via a monitor attached to his stomach.

- Go Namju - Male. Extremely handsome. His left eye is covered by his hair. He wears a snake around his neck. - Snake V - Male. A fairly large snake. Go Namju's pet.

A sparrow with a rather loud voice. Male.

Female. Gorgeous. A white tiger beastman. Very kind.

Female. A shark beastman. Gorgeous. Always smiling.

Male. An Asiatic black bear. The second of the three Chubby Bear brothers.

Male. A panda. The youngest of the three Chubby Bear brothers.

- General NPCs - Patients (animal beastmen). - Special NPCs - Lettuce: Confirmed to visit twice. First comes as a patient with the line 'Being small has its advantages. You see what others miss, and hear what others don't.' The second time, he enters the counter, explains his younger sister Latina, and leaves. Barney: Appears on Day 2. His line is 'Hey, friend. I'm Barney. Can you brew me a cup of coffee? It's been a long day...' He keeps visiting and eventually asks you to hide him. Then Officer Duckman arrives asking if the serial killer Barney is here. If you say no, Barney gives you a good coffee machine. If you say yes, he kills Officer Duckman and flees. Officer Duckman can be revived later. Dr. Hollow: Appears after Day 1 ends. Flees if ambulances swarm, but also unlocks items. If you help him move luggage, you can find various items, including Hollow's family photo. Liz: A caracal cat and photographer. On certain days, she tries to invite you to her house. Sam: A calico cat who handles various tasks like slime removal and anomaly containment. Hiring him costs $250.

Monster Under the Bed: Only eyes and arms. Eyes are red. Disappears if given maple syrup. Eyeball Pile: Can be treated with eye drops. Looking at it drains Sanity. Slime Bert: Green slime that even eats other anomalies. Hyder: Seen in hallways. Camouflages its body but cannot hide its eyes and mouth. Skinwalker: An anomalous patient. Can be identified by strange eyes/mouth or if they stare at the player constantly. Can be handled with a stun gun, by closing the shutters to reject them, or by shooting them. Stalker: Appears occasionally; looking at it drains 10 Sanity. Suspected to be Latina. Camera Monster: Occurs when a CCTV camera breaks. Staring at it results in a jumpscare and 50 Sanity loss. Mini Skinwalker: A small pink rabbit. Identical to a Skinwalker in all other aspects.