Animal Hospital Character Guide: Full Analysis of Barney, Ratthew, and Officer Duckman

First, let's clarify the background to help you understand why these characters act the way they do. Animal Hospital is a co-op survival horror game developed by the Roblox group "Animal Anomaly" (led by Roytt), supporting up to 30 players, free to play, and cross-platform. Since its release on 2026-05-10, it has become a hit, with approximately 45.2 million visits, a peak of about 135,000 concurrent players, 216,000 favorites, a 95.8% approval rating, and a high-frequency update schedule with patches almost daily.

Its tone is slow-burn psychological horror—relying on atmosphere and unease rather than constant jump scares; the overall feel is aimed at teens, with an official Roblox rating of All Ages. Understanding this "chronic fear" tone helps you realize why characters like Barney don't rely on aggression, but rather on a series of seemingly harmless "requests" to slowly close in on you.

In terms of appearance, Barney is a white rabbit wearing a brown hat, plaid pants, and a mustache, with thin, black slit-like eyes. It usually looks harmless, but when it reveals its true form as an anomaly, it shows a mouth full of sharp fangs and two hollow eye sockets—this is its true face. Unlike many window anomalies that require you to 'identify and reject' them, Barney is a multi-stage narrative encounter: it will make requests of you step-by-step, and each of your choices pushes the story in a different direction.

The most important tip for beginners is: Barney is not a target that can be solved with force. Many players instinctively want to 'shoot it' or 'use the taser to subdue it,' but these methods have no effect on Barney and will only waste resources and expose your position. The correct way to play is to follow its requests or hand it over to the police at the final moment—see the sections below for details.

The design of the entire process is very 'psychological horror': starting with a cup of coffee and ending with helping it hide from the police, each step implies a bit more complicity than the last. By the time you realize you are helping a serial killer escape, you have often already reached the final step. This is one of the most intriguing segments in the Animal Hospital story—it turns the core proposition of 'should I trust this harmless-looking character' into a choice with consequences.

Turn-in Ending: When you choose to trust the law and hand Barney over to Officer Duckman, things don't go as expected—Barney knocks the officer out and walks away. In other words, "reporting" it doesn't actually stop it; instead, it leads to a scene where it "outsmarts" the law to escape.

Hiding Ending: If you choose to harbor it, Barney will thank you with its red briefcase, leaving you a second coffee machine. Considering coffee is the item that started its whole request, an extra machine is a decent reward for maintaining your supplies/status during later Shifts; however, community records on its specific utility are still brief, so we simply note it as "an extra coffee machine that was Barney's briefcase."

Ratthew is an anthropomorphic mouse with buck teeth and rabbit-like ears. It does have one nervous habit—it stares at the CCTV camera; however, the key difference is that its head rotation never exceeds natural limits. This distinguishes it from "staring anomalies," which are characterized by heads twisting at impossible angles, whereas Ratthew does not.

In later Shifts, the game introduces a "Mimic" (a form of Skinwalker) that specifically imitates Ratthew. It will copy Ratthew's appearance to trick you, so the further you play, the less you can rely on it "looking like Ratthew." Be sure to watch for details that "shouldn't be there"—especially flaws like unnatural head rotation.

Officer Duckman is a duck police officer hunting Barney (also referred to in the community as "duck police"). It is not an enemy threatening the player, but rather the law enforcement entity within Barney's storyline. When you choose to turn Barney in during the fourth step, this is who you are handing him over to.

Be warned: turning Barney over to Officer Duckman does not lead to a "justice served" ending—Barney will knock the officer unconscious and escape. Therefore, whether to trust Duckman or choose the "turn in" route is a player decision with consequences, not a guaranteed safe option.

There are indeed other NPCs in the Animal Hospital (such as in the lobby), but community documentation on them is very thin—no complete names, mechanics, or storyline affiliations. In the interest of accuracy and honesty, we will not fabricate identities or gameplay for them here: what can be confirmed is that "they exist, but documentation is incomplete."

If you encounter a character not listed on this page during your playthrough, it is recommended to treat it as "unknown" and follow general principles: observe whether it shows any unnatural flaws before deciding whether to accept it or lower the shutter. As patches are released almost daily, more characters will likely be officially fleshed out in the future—this page will be updated accordingly.

You play as a night-shift receptionist at a veterinary clinic. Animal patients will come to the reception window seeking treatment, but some of them are anomalies (monsters) disguised as animals. Your job is to screen them one by one: admit the real patients, and use the red shutter to keep the anomalies out. Patients you admit must be taken to the medical room to complete their treatment through mini-games.

Meanwhile, there are enemies roaming the clinic and various unexpected events. You must deal with them while keeping your Sanity above 0. There is no end to the game—the goal is to survive as many Shifts as possible. To summarize the gameplay hook in one sentence: "FNAF meets 'Spot the Difference,' and you are the veterinary receptionist."