The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Abduction Victims (88 members)
- Abduction Victims Characters (0 members)
- Abductors (291 members)
- Abuse Victims (80 members)
- Accidental Killers (38 members)
- Actors (1,275 members)
- Actresses (675 members)
- Administrators (3 members)
- Alzheimer's Patients (4 members)
- Anarchists (7 members)
- Angels of Death (11 members)
- Arms Traffickers (5 members)
- Arsonists (26 members)
- Article management templates (3 members)
- Article stubs (0 members)
- Assassins (6 members)
- Assault Rifles (12 members)
- Attempted Bombers (6 members)
- Attempted Mass Murderers (18 members)
- Attempted Murderers (47 members)
- Authors (1 member)
- Bank Robbers (10 members)
- Behind the Scenes (1 member)
- Behind the Scenes Images (408 members)
- Beyond Borders Characters (66 members)
- Beyond Borders Criminals (44 members)
- Beyond Borders Episodes (28 members)
- Beyond Borders Season One Criminals (17 members)
- Beyond Borders Season One Episodes (15 members)
- Beyond Borders Season Two Criminals (22 members)
- Beyond Borders Season Two Episodes (13 members)
- Black Widows (9 members)
- BlogListingPage (0 members)
- Blog posts (81 members)
- Blogs (3 members)
- Bombers (16 members)
- Browse (4 members)
- Budding Serial Killers (38 members)
- Budding Serial Rapists (11 members)
- Budding Spree Killers (12 members)
- CIA Agents (5 members)
- Candidates for deletion (26 members)
- Candidates for speedy deletion (3 members)
- Cannibals (11 members)
- Captives (44 members)
- Captors (128 members)
- Car Bombers (5 members)
- Category templates (4 members)
- Character images (27 members)
- Child Abusers (19 members)