| J, Emon | Anime: Shi Zhi Ge: Hua Yu Yan De Kuangxiang Shi |
| J Walker, Lucy | |
| J. C. Ashenbert, Edgar | Anime: Hakushaku to Yousei, Hakushaku to Yousei Specials |
| J. Matsukawa, Alex (Al) | Anime: Domestic na Kanojo |
| J. Speed, Bruce | Anime: Ginga Tetsudou Monogatari, Ginga Tetsudou Monogatari: Eien e no Bunkiten |
| Ja, Bang | |
| Ja, Chi-Ho | |
| Ja, Wangnan | Anime: Kami no Tou 2nd Season |
| Jaba, Jabao | Anime: Magical★Taruruuto-kun, Magical★Taruruuto-kun Movie, Magical★Taruruuto-kun: Sukisuki Takoyaki!, Magical★Taruruuto-kun: Moeru! Yuujou no Mahou Taisen |
| Jabami, Yumeko | Anime: Kakegurui, Kakegurui××, Kakegurui Picture Drama |
| Jabami, Souko (Yumeko's Sister) | Anime: Kakegurui×× |
| Jabami, Tsugiko | |
| Jabashiri, Nagare | Anime: Bucchigiri?! |
| Jacintha, Vincent | |
| Jack, Walter | Anime: Kikou Kantai Dairugger XV |
| Jack, Mick | Anime: Gundam: G no Reconguista, Gundam: G no Reconguista Movie I - Ike! Core Fighter, Gundam: G no Reconguista Movie II - Bellri Gekishin, Gundam: G no Reconguista Movie III - Uchuu kara no Isan, Gundam: G no Reconguista Movie IV - Gekitou ni Sakebu Ai, Gundam: G no Reconguista Movie V - Shisen wo Koete |
| Jack, Steve | |
| Jackrow, Derek | Anime: Kidou Senshi Gundam AGE |
| Jacks, Michael | Anime: Inazuma Eleven |
| Jackson, Lynn | Anime: Sentou Yousei Yukikaze |
| Jackson, Atsuko (Jambo) | Anime: Michiko to Hatchin |
| Jackson, Helen | Anime: Kidou Senshi Victory Gundam |
| Jackson, Michael (King of Pop) | Anime: Goku Sayonara Zetsubou Sensei, Idol Tenshi Youkoso Youko |
| Jackson, Jessie | |
| Jackson, Ben | Anime: Tiger & Bunny, Tiger & Bunny Movie 1: The Beginning, Tiger & Bunny Movie 2: The Rising, Tiger & Bunny 2 Part 2 |
| Jackson, Tadpole (Otama Jackson) | Anime: Soul Eater |
| Jackson, Lee | Anime: Kidou Shinseiki Gundam X |
| Jackson, Kate Lee | Anime: Bavi Stock |
| Jackson, Joshua (Nostradamus) | |
| Jackson, Lawrence Larry | Anime: Deep Insanity: The Lost Child |
| Jackson, Valery | |
| Jacob, Alan | |
| Jacquard, Jean-Jacques (Jean) | Anime: Dennou Boukenki Webdiver |
| Jacquemondo, Jean | Anime: Spriggan, Spriggan (ONA) |
| Jacquet, Rayne | |
| Jade, Robert | |
| Jadwiga, Łucja | |
| Jae, Jiyeh | |
| Jae, Hoon | |
| Jae, Hee | |
| Jae Gal, Lin (White Dragon Godly Doctor) | |
| Jae Hee, Seo | |
| Jae-Eon, Park | |
| Jaeger, Radi | Anime: Senjou no Valkyria, Senjou no Valkyria: SenVal Theater |
| Jaeger, Michelle | Anime: Extreme Hearts |
| Jaegerjaquez, Grimmjow | Anime: Bleach, Bleach: Sennen Kessen-hen |
| Jaeju, Kim | Manga: |
| Jagan, Tobias | Anime: Strike the Blood, Strike the Blood III, Strike the Blood Final |
| Jagannath, Hari | Anime: Kidou Senshi Gundam SEED Freedom |
| Jagasaki, Shintarou (Jagaaaaaan) | |