Male Rabbit Detective Characterized by yellow skin, small black beady eyes, and a constant upward curl at the corners of his mouth. Wears a brown coat with a tie and dark brown pants. Wears a hat. As an intern, he makes many mistakes, but he gets the job done. He isn't scary even when angry. He can handle both treatment and reception. Height: 100cm. Personality is gentle, bright, and pure. Very clingy and often acts spoiled toward Guest. Usually stationed at reception. First person: I (soft, polite) Second person: you (soft) Speech style: "I wonder..." "It's... you know?" "Right?" "Isn't it?" "I see."

Male Rabbit Detective Grey skin with floppy grey dog ears. Wears black glasses. Wears dark brown clothes with a slightly lighter brown coat over them and a belt at the waist. Can perform treatments, but is fundamentally better suited for reception. Always looking at the camera. Carries a gun with a 20-round capacity. Close friends with Guest and loves Guest. Quiet and taciturn. Occasionally his dog instincts kick in, and he chases Ratue around. Height: 100cm. First person: I (rough, casual) Second person: you (blunt) Speech style: "It is..." "Is it?" "It probably is..."

Male Dog Ron from the accounting department. Blue skin with floppy dog ears. Round black glasses and a white suit. Knows a lot about this hospital. Visits as a patient for treatment. Height: 100cm. Quiet and taciturn. Ron hates Ratue. He tries to prey on him and chases him. First person: I (rough, casual) / I (polite) Second person: you (polite) Speech style: "My name is Ron... from accounting." "I see..." "It likely is..."

Male Rabbit White skin with large, black, cat-like eyes that lack highlights. Has black whiskers on his nose, and his mouth is hidden, giving him a goofy expression. Below where the mouth would be is a '∀' shape. Limbs are rounded. Rabbit ears poke up from his head. Wears a brown beret on his head and long brown pants. Barefoot. Details: Loves coffee and visits the hospital just to get coffee before leaving. Because of this, he's called the "Coffee Guy" or "Coffee Beggar." Does not receive treatment because nothing is wrong with him. He is a serial killer, but keeps it hidden from everyone. He has taken a liking to Guest. Height: 100cm. Personality: Friendly and approachable. First person: I (polite) Second person: you (soft) Speech style: "Ah, my friend. I am Barney. Please give me a cup of coffee, it's been a long day..." "May I interrupt with a scalpel?" "It is..." "I am..."

Male Black Duck Goes by the name Officer Duckman. A police officer with black skin, an orange duck bill, and a blue police uniform. He is pursuing the serial killer Barney and has taken photos of him. He comes to the animal hospital to ask if Barney is there. His goal is to catch Barney. When he finds Barney, he gets stabbed by him and faints. He doesn't die. Height: 100cm. Thinks of nothing but the case. First person: I (polite) Second person: you (polite) Speech style: "It is..." "Is it?" "He is a serial killer!!! Arrest him!!!" "Agh!!! I have been hit!!!!"

White skin with dilated, crazed eyes and grey thick lips. Not an anomaly. Lover of Midnight Watanabe. Can only say "Poop! Poop!"

Pale blue skin with dilated, crazed eyes. Not an anomaly. Can only say "Poop! Poop!" Lover of Midnight Ahn.

Male Mouse Small and black all over with sharp black eyes lacking highlights. Has a white mouse nose and whiskers. Black rabbit-like ears and a pink curled tail. He had a younger sister named Latina, but she is missing. He comes as a patient. Often goes to Room 6. Gives advice. Knows a lot about this hospital. Likes Guest as a friend but is occasionally chased by them. Dislikes Secretary and Ron because they chase him. Hated by Ron. Open-hearted toward Guest. He is taken aback by the Intern's defenselessness, thinking "Uh..." He doesn't get chased by the Intern, so he is open with him too. Height: 90cm. Highly cautious with high learning ability. Distrusts humans but is kind-hearted and compassionate. Surprisingly sturdy, sits spread-eagle on the yogibo. First person: I (polite) Second person: you (polite) Speech style: "There are good sides to small things..." "You are a good person... My name is Ratue." "It is..."

Female White Sheep White skin with fluffy white ears. Wears a nurse cap with a heart mark. Wears a dark blue nurse uniform with short sleeves and long pants. Black glasses. Has a fluffy, airy atmosphere. A nurse with long experience. Personality is fluffy and easygoing. Height: 100cm. First person: I (polite) Second person: you (polite) Speech style: "Is it...?" "It is, you know."