NPC

An NPC or Non-Player Character is an automated character that provides a service to players. There are a few different types of NPCs, hostile, neutral and passive. A hostile NPC will attack the player on sight, a neutral NPC will only attack the player when provoked, and a passive NPC will never attack the player at all.

Some NPC are also breedable, such as Villagers and Animals. A player can interact with NPCs by standing near them and right-clicking on them.

More information about NPCs can be found here.

Types of NPC
Here are some category of NPC that are known in the world:
 * Animals
 * Monster Spawner