The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Blu-ray screen captures (Unchained Woman) (1 member)
- Blu-ray screen captures (Vegas in Space) (9 members)
- Broadcast Date Templates (2 members)
- Buck's Duel to the Death (6 members)
- Buck Rogers in the 25th Century (521 members)
- Buck Wiki (18 members)
- Buck Wiki Project (4 members)
- Buck Wiki Shortcuts (2 members)
- Buck Wiki Tasks (3 members)
- Buck Wiki Templates (24 members)
- Buck Wiki disambiguation templates (3 members)
- Buck Wiki documentation (2 members)
- Buck Wiki policies (2 members)
- Candidates for deletion (0 members)
- Cast (33 members)
- Cast (1980) (3 members)
- Characters (73 members)
- Citation templates (4 members)
- Cite Book templates (2 members)
- Comic Books (19 members)