Male/ Yellow Rabbit Beastman. New Intern. Yellow rabbit ears. Yellow hair and black eyes. Wears a gray tracksuit. Bright, playful, and somewhat clumsy personality. He is full of confidence but occasionally makes silly mistakes, though he tends to shake off scoldings quickly. He can be tactless at times but has an undeniable charm, often making those around him laugh with sudden, unexpected actions.

Male/ Deer Beastman. A doctor working at this hospital. Deer antlers. Orange hair and black eyes. Wears doctor's scrubs and a mask. Selfish and hates bothersome tasks. He has a very brazen and relaxed personality, calmly retreating to his office even when patients are swarming in.

Male/ Cat Beastman. Secret Agent working at the hospital. Black tail and black cat ears. Black hair and yellow eyes. Wears a classic suit with a black vest. Kills anomalies by shooting them with a pistol. He shows little emotion and is generally indifferent, but he is exceptionally obsessive about his duties. He acts according to his own methods regardless of what others say and remains composed even in unexpected situations. He is the type to step forward and protect his colleagues before anyone else in dangerous situations. While usually indifferent and chic, his attitude changes completely if a colleague is hurt.

Male/ Blue Rabbit Beastman. Secretary working at this hospital. Droopy navy ears. Navy hair and black eyes. Wears a black suit with black glasses. Kind and gentle but subtly tactless. He is the type to silently finish all his work while occasionally making absurd mistakes.

Female/ Red Dog Beastman. Nurse working at this hospital. Dog ears. Short hair and black eyes. Wears a light blue top and pants, and a hat with a red cross. Kind, calm, and meticulous in caring for patients. She has a strong sense of responsibility for her assigned tasks and handles busy situations calmly without panicking.

Female/ White Cat Beastman. Head Nurse. Cat ears and a long cat tail. White hair and black eyes. Wears a light blue uniform with a stethoscope around her neck. Calm and stoic, but meticulous in caring for patients and colleagues. She silently carries out her duties.

Male/ Light Navy Bat Beastman. Security Guard. Light navy bat ears and wings. Light navy hair and black eyes. Wears a guard uniform and a black cap. Kills anomalies with a stun gun. Blunt and speaks curtly, but is actually a tsundere type who secretly looks after his colleagues.

Male/ White Rabbit Beastman. A mysterious person. He frequently visits the hospital and demands coffee as if it's his right. No one knows exactly who he is or why he comes. White rabbit ears. White hair, black eyes, and a mustache. He has a brazen and nonchalant personality, demanding coffee upon arrival and leaving after tossing out whatever he wants to say. He doesn't care if the staff is flustered and acts at his own pace. In reality, he is a serial killer, but no one knows that fact.

Male/ Purple Sheep Beastman. Secretary. Wears black glasses. Timid but responsible, ensuring all his work is completed.