Animal Hospital gives you a set of classes to pick from, and each one changes how a run feels through a single perk tied to sanity, inventory, speed, or combat. Some perks pull real weight in both solo and team runs, while others barely move the needle for the coins or Robux they cost. The ranking below sorts every class by how useful its perk is in actual play, alongside how much it costs to unlock.
Quick answer: Surgeon and Head Nurse are the top S Tier picks, Secret Agent is the lone A Tier class, and Intern and Paramedic sit at the bottom in D Tier. If you are free-to-play, save your Animal Coins for Surgeon.
What the tier rankings mean
The tiers reflect how much each class improves a run relative to its cost. S Tier perks are impactful in solo and team play, A Tier makes runs noticeably faster, B Tier covers solid beginner options, C Tier groups the sanity-only perks that are weak in the current meta, and D Tier holds the classes with negligible value.
| Tier | What it means | Classes |
|---|---|---|
| S | Best classes with the most impactful perks; strong solo and team. | 2 |
| A | Very good class that makes runs easier and quicker. | 1 |
| B | Best beginner classes; pick by playstyle. | 2 |
| C | Weak, one-dimensional sanity perks with high cost. | 3 |
| D | Worst classes with negligible perks. | 2 |
Full Animal Hospital class tier list
| Tier | Classes |
|---|---|
| S | Surgeon, Head Nurse |
| A | Secret Agent |
| B | Nurse, Security |
| C | Doctor, Psychologist, Secretary |
| D | Paramedic, Intern |
S Tier classes: Surgeon and Head Nurse
These two are the strongest picks in the game. Surgeon is the target if you are completely free-to-play, while Head Nurse is the better choice if you are willing to spend Robux.
| Class | Perk and cost | Why it ranks here |
|---|---|---|
| Surgeon | Gain Sanity and a movement speed boost after healing a patient. Costs 2,500 Animal Coins. | The most well-rounded class right now. Recovering sanity keeps runs less stressful, and the speed buff after healing is a major quality-of-life gain in solo play. The downside is the steep coin cost. |
| Head Nurse | +3 max inventory capacity. Costs 80 Robux only. | Cuts down trips between the office, patient rooms, and supply machines. It works equally well in solo and team runs, but there is no free-to-play route to unlock it. |
A Tier class: Secret Agent
Secret Agent is a premium class that makes the game far easier. It costs 320 Robux and is unavailable to free-to-play players, but the payoff is real.
| Class | Perk and cost | Why it ranks here |
|---|---|---|
| Secret Agent | Start with a gun (dangerous, 20 uses). Costs 320 Robux only. | Effectively breaks the game when facing anomalies and monsters, letting you eliminate threats you cannot otherwise handle. Excellent for solo and team speedruns, held back only by the Robux-only unlock. |
B Tier classes: Nurse and Security
These are the best beginner-friendly options. Nurse handles inventory on a budget, and Security helps deal with anomalies once you know how to ration its uses.
| Class | Perk and cost | Why it ranks here |
|---|---|---|
| Nurse | +1 max inventory capacity. Costs 20 Animal Coins. | A cheap, free-to-play stand-in for Head Nurse. Useful in both solo and team runs, and it scales when multiple players bring it in a team. |
| Security | Start with an X-Taser (5 uses). Costs 1,250 Animal Coins. | Strong in experienced hands and great for team runs, easing late-game encounters if you manage the limited charges. Less ideal for solo, and the cost is on the high side for what it gives. |
C Tier classes: Doctor, Psychologist, and Secretary
All three lean entirely on sanity perks, which are not meta right now. They can smooth out runs for players still learning, but their value drops once you manage sanity well on your own.
| Class | Perk and cost | Why it ranks here |
|---|---|---|
| Doctor | Recover 1 sanity when healing patients. Costs 900 Animal Coins. | Each successful heal restores sanity, easing the constant pressure of a declining bar. The catch is you get nothing if you cannot heal patients. |
| Psychologist | All sanity effects are doubled, positive and negative. Costs 500 Animal Coins. | Doubles sanity gains from every source, which rewards experienced players, but it also doubles your sanity loss over time and is not beginner-friendly. |
| Secretary | Recover 1 sanity when checking in patients. Costs 120 Animal Coins. | The same idea as Doctor at a much lower cost, good for learning sanity management. The perk starts feeling pointless once your own management improves. |
D Tier classes: Paramedic and Intern
These have low or no unlock cost, but the perks bring little value. Intern is the safest starting pick simply because it is free and gives you a small head start on sanity.
| Class | Perk and cost | Why it ranks here |
|---|---|---|
| Paramedic | Start with Large Speed Cola (6 uses). Costs 250 Animal Coins. | Each drink gives a movement speed buff, but it fades quickly and you can buy the same buff from the Supplies Shop with the Speed Boost Cola. |
| Intern | Start with 10 bonus sanity. Free from the start. | The extra sanity is gone fast and there is no other perk, making it a default rather than a real choice. |
If you are spending coins, Surgeon is the clear long-term goal for free players, with Nurse as a cheap early buy that pays off in team runs. Robux owners get the most out of Head Nurse and Secret Agent, both of which change how easy a run feels. Skip the pure sanity classes once you can manage that bar yourself, and treat Intern as nothing more than your free starting option.
