The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Thor (39 members)
- Thrill Kill (290 members)
- Thunder (1 member)
- Tiffany Lords (55 members)
- Tina Armstrong (2 members)
- Todo (5 members)
- Todoh (1 member)
- Torao (2 members)
- Tormentor (16 members)
- Touhou Suimusou: Immaterial and Missing Power (0 members)
- Tournaments (15 members)
- Tremor (4 members)
- Trish (34 members)
- Tron Bonne (37 members)
- True Ogre (3 members)
- Tuff E Nuff (29 members)
- Tung Fu Rue (73 members)
- Twelve (51 members)
- U.S. Agent (2 members)
- UMVC3 (38 members)
- UMVC3:CE (5 members)
- UMVC3:PS (9 members)
- UMVC3PS (19 members)
- UMvC3:CE (1 member)
- USFIV (18 members)
- Ukyo Tachibana (1 member)
- Ultimate Marvel vs Capcom 3 (2,222 members)
- Ultimate Mortal Kombat 3 (40 members)
- Ultimate Mortalk Kombat 3 (22 members)
- Ultra Street Fighter 4 (7 members)
- Ultra Street Fighter IV (202 members)
- Ultron (1 member)
- Umcv3 (3 members)
- Umvc3 (1 member)
- Universal (88 members)
- Urien (78 members)
- Vampire Savior (Darkstalkers 3) (150 members)
- Vanessa (0 members)
- Vatsu "Ichimonji" (50 members)
- Vector (1 member)
- Vega (38 members)
- Vega (Claw) (43 members)
- Venom (51 members)
- Vergil (54 members)
- Vice (6 members)
- Victor (11 members)
- Video Game Companies (0 members)
- Video game companies (14 members)
- Viewtiful Joe (30 members)
- Violent Ken (1 member)