The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Actors (16 members)
- Article management templates (4 members)
- Article stubs (0 members)
- BlogListingPage (0 members)
- Blog posts (0 members)
- Browse (6 members)
- Candidates for deletion (0 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Characters (18 members)
- Claire (1 member)
- Community (7 members)
- Content (1 member)
- Copyright (0 members)
- Disambiguations (0 members)
- Episodes (203 members)
- Forums (6 members)
- General wiki templates (31 members)
- Help (5 members)
- Help desk (2 members)
- Hidden categories (2 members)
- Image wiki templates (9 members)
- Images (6 members)
- Indexed pages (1 member)
- Infobox templates (9 members)
- Jo Polniaczek (1 member)
- Lists (3 members)
- Locations (5 members)
- Main Characters (1 member)
- Marked For Deletion (1 member)
- Movies (1 member)
- New pages (0 members)
- Organisation (0 members)
- Organization (8 members)
- Pages proposed for deletion (0 members)
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- Policy (2 members)
- Season Five Episodes (1 member)
- Seasons (9 members)
- Site administration (4 members)
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- Template documentation (62 members)
- Templates (11 members)
- Videos (1 member)
- Watercooler (2 members)