The Pixar Wiki uses a very limited number of categories as describe below:

The use of "generic" categories is prohibited. Examples of "generic" categories include, but are not limited to, Humans, Animals, Male, Female, Royalty, Monsters, Fish and Toys.

The creation of additional categories for protagonists and antagonists is also prohibited. There are 2 categories for this type of specification - Protagonist and Primary Villains. Characters are only added to these categories after they are discussed and agreed to on each category's talk page. Adding characters to either of these categories without first having it discussed on the talk page is prohibited. Use of any other categories, such as "Antagonists" or "Reformed Characters" is also prohibited.

Users who violate this policy are subject to being blocked. The blocking policy is the same as described on the Antagonist policy page.