The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Can Badges (61 members)
- Capricious Us Characters (3 members)
- Card Art (182 members)
- Card Game (6 members)
- Card Sleeves (3 members)
- Carl Clover (498 members)
- Carmine (27 members)
- Category:Taro Sasaga'e (1 member)
- Cathedral (18 members)
- Cauldrons (6 members)
- Celica A. Mercury (740 members)
- Central Fiction Characters (54 members)
- Central Fiction characters (2 members)
- Central Station (0 members)
- Chachakaka (119 members)
- Character Categories (17 members)
- Characters (127 members)
- Characters born in Akitsu-Kou (1 member)
- Characters born in April (11 members)
- Characters born in August (4 members)
- Characters born in December (5 members)
- Characters born in February (4 members)
- Characters born in Ibukido (4 members)
- Characters born in Ishana (3 members)
- Characters born in Iwasu (1 member)
- Characters born in Iwatsuchi (2 members)
- Characters born in January (8 members)
- Characters born in Japan (1 member)
- Characters born in July (2 members)
- Characters born in June (3 members)
- Characters born in Kagutsuchi (4 members)
- Characters born in Kazamotsu (1 member)
- Characters born in Kukunochi (1 member)
- Characters born in March (5 members)
- Characters born in May (2 members)
- Characters born in Naobi (2 members)
- Characters born in November (6 members)
- Characters born in October (6 members)
- Characters born in Ookoto (1 member)
- Characters born in September (6 members)
- Characters born in Shanghai (1 member)
- Characters born in Shin Yokozaki City (6 members)
- Characters born in Shinatsu (1 member)
- Characters born in Transylvania (1 member)
- Characters born in Wadatsumi (2 members)
- Characters born in the United Kingdom (1 member)
- Characters by Ability (15 members)
- Characters by Location of Birth (17 members)
- Characters by Media Appearance (48 members)
- Characters by Month of Birth (12 members)
- Characters by Organization (16 members)
- Characters by Species (14 members)
- Chibi (42 members)
- Chibi Portraits (482 members)
- Chie Satonaka (39 members)
- Chimelical Complex Characters (18 members)
- Chosen (12 members)
- Chrono Phantasma Characters (44 members)
- Chrono Phantasma Extend Characters (49 members)
- Church (1 member)
- Ciel Sulfur (208 members)
- Circus (12 members)
- Clavis Alucard (19 members)
- Clear Files (24 members)
- Clone Phantasma Characters (16 members)
- Clothing (62 members)
- Clover (5 members)
- Code: Embryo Characters (20 members)
- Colosseum (6 members)
- Comiket 74 (4 members)
- Comiket 76 (19 members)
- Comiket 77 (7 members)
- Comiket 78 (5 members)
- Comiket 80 (8 members)
- Comiket 81 (12 members)
- Comiket 84 (9 members)
- Comiket 86 (1 member)
- Comiket 88 (6 members)
- Comiket 93 (5 members)
- Comiket 94 (1 member)
- Comiket 97 (7 members)
- Conflicts (5 members)
- Contents Kit (8 members)
- Continuum Shift Characters (38 members)
- Continuum Shift Extend Characters (38 members)
- Continuum Shift II Characters (38 members)
- Corpus Sepulcro: Requiem (1 member)
- Countdown Illustration (BBDW) (10 members)
- Crests (46 members)
- Cross Field (0 members)
- Cross Tag Battle Characters (58 members)
- Crossover Characters (34 members)
- Cypher Albar (9 members)
- DLC (142 members)
- DLC Characters (5 members)
- DVDs (3 members)
- Daisuke Ishiwatari (0 members)
- Daisuke Kawauchi (0 members)
- Dakimakura (30 members)
- Demi-Humans (5 members)