The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Albums (2 members)
- Angel (2 members)
- Archdevil (1 member)
- Blog posts (0 members)
- Books (2 members)
- Browse (7 members)
- Bully (4 members)
- Candidates for deletion (0 members)
- Characters (14 members)
- Deceased (1 member)
- Devil (2 members)
- Disambiguations (0 members)
- Episodes (49 members)
- Events (2 members)
- Exorcist (2 members)
- Female (3 members)
- Help (0 members)
- Human (10 members)
- Images (2 members)
- Infobox Templates (1 member)
- Items (2 members)
- Locations (2 members)
- Main Page Templates (2 members)
- Male (11 members)
- Quests (2 members)
- Template documentation (26 members)
- Templates (30 members)
- Templates/Infobox (7 members)
- Templates/Navbox (1 member)
- Templates/Quote (1 member)