The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Blog posts (0 members)
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- Cast (19 members)
- Characters (21 members)
- Community (1 member)
- Crew (1 member)
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- Disambiguations (0 members)
- Documentation templates (1 member)
- Episodes (7 members)
- Females (7 members)
- General wiki templates (18 members)
- Hatnote templates with errors (0 members)
- Image license templates (13 members)
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- Infobox templates (6 members)
- Locations (2 members)
- Maintenance (6 members)
- Males (11 members)
- Media (2 members)
- Midnight Mass (2 members)
- Midnight Mass Wiki (20 members)
- Navbox templates (1 member)
- Notice templates (10 members)
- Pages with broken file links (0 members)
- Preload templates (5 members)
- Promotional Images (83 members)
- Quote templates (2 members)
- Screencaps (9 members)
- Season 1 Episodes (7 members)
- Seasons (1 member)
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- Template documentation (49 members)
- Templates (35 members)
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- Wiki skin images (2 members)