The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Actors (17 members)
- Article management templates (7 members)
- Blog posts (0 members)
- Browse (20 members)
- Candidates for deletion (0 members)
- Cartoon Network characters (28 members)
- Category templates (1 member)
- Characters (153 members)
- Companies (9 members)
- Disambiguations (0 members)
- Duck Dodgers characters (5 members)
- Episodes (4 members)
- Films (27 members)
- General wiki templates (26 members)
- Hanna-Barbera Characters (6 members)
- Image wiki templates (8 members)
- Images (5 members)
- Infobox templates (13 members)
- Infoboxes (6 members)
- Looney Tunes (1 member)
- Looney Tunes characters (5 members)
- Looney Tunes films (1 member)
- Mr. Hook Shorts (1 member)
- Organization (2 members)
- Pages with broken file links (21 members)
- Scooby-Doo films (24 members)
- Shorts (10 members)
- Shows (6 members)
- Site maintenance (2 members)
- Television series by Warner Bros. Television (0 members)
- Template documentation (55 members)
- Templates (18 members)
- U.S Navy Episodes (2 members)
- Villains (8 members)
- Wacky Races (5 members)
- Wacky Races Characters (6 members)
- Warner Bros. (5 members)
- Warner Bros. animated films (2 members)
- Warner Bros. characters (4 members)