The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Animals (4 members)
- Browse (3 members)
- Cameo Characters (1 member)
- Chapters (6 members)
- Characters (30 members)
- Characters based off real people (2 members)
- Community (4 members)
- Content (0 members)
- Forums (3 members)
- General wiki templates (1 member)
- Groups (4 members)
- Help (4 members)
- Help desk (1 member)
- Images (1 member)
- Locations (3 members)
- Major Villains (2 members)
- Minor villains (8 members)
- Objects (2 members)
- Police (3 members)
- Policy (2 members)
- Site administration (3 members)
- Space Police (1 member)
- Synthetics (2 members)
- Template documentation (11 members)
- Templates (12 members)
- The Odd Bricks (6 members)
- The Suits (5 members)
- Vehicles (2 members)
- Watercooler (1 member)