The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 13-17 (1 member)
- 4 Plus Minifigures (4 members)
- A.I.M (5 members)
- Acrobat (233 members)
- Administrators (3 members)
- Age of Ultron (25 members)
- Agents of S.M.A.S.H (5 members)
- Aliens (41 members)
- All (1 member)
- Allhome (1 member)
- Alter Egos (44 members)
- Alternate versions of Spider-Man (0 members)
- Animals (22 members)
- Ant-Man Characters (10 members)
- Anti-heroes (14 members)
- Aquaman Characters (4 members)
- Article management templates (3 members)
- Article stubs (2 members)
- Avengers (107 members)
- Avengers: Infinity War (2 members)
- Avengers Characters (1 member)
- Bat Family (67 members)
- Batman (12 members)
- Batman 1966 characters (9 members)
- Batman Beyond (7 members)
- Batman Characters (189 members)
- Batman Sets (1 member)
- Batman Villains (65 members)
- Beam (64 members)
- Big (25 members)
- Big Transformation (16 members)
- Bizarro League (5 members)
- Black Panther (1 member)
- Black Panther Characters (12 members)
- BlogListingPage (0 members)
- Blog posts (12 members)
- Bosses (2 members)
- Brotherhood of Evil Mutants (12 members)
- Browse (3 members)
- Bruce Banner Characters (1 member)
- Candidates for deletion (0 members)
- Candidates for speedy deletion (0 members)
- Candidates of Deletion (1 member)
- Captain America Characters (40 members)
- Category templates (3 members)
- Champions (9 members)
- Character (3 members)
- Character List (5 members)
- Character over 17 (1 member)
- Characters (13 members)