Aliases
| Name | Aliases |
|---|---|
| Koumei Shokatsuryou | Zhuge Liang |
| Koumori | Bat |
| Koushou Shinogi | The Cord Cutter |
| Kousonsan Hakukei | Pairen (白蓮) |
| Kousuke Nitou | Kamen Rider Beast |
| Kousuke Ooshiba | Bear Killer |
| Kouta Kazuraba | Kamen Rider Gaim |
| Kouta Kijima | Chief |
| Kouta Nakanishi | Chouno Uryoku |
| Koutarou Araki | Luce, The Ironclad Sister |
| Kouu | Xiang Yu |
| Kouya | Kenroushin-kun (犬狼真君) |
| Kouyou Kotesashi | Koyo |
| Kouyuu Sonken | Mifa (美花) |
| Koyanskaya of Light | Assassin, Tamamo Vitch |
| Koyomi Hiiragi | Options |
| Koyomi Mizuhara | Yomi |
| Koyori Kokubunji | Magical Maid Koyori |
| Koyuki Kazahana | Yukie Fujikaze, 富士風雪絵, Princess Gale, フーウン姫 |
| Kozue Orihara | Kozupii |
| Kozuki Momonosuke | Kouzuki Momonosuke |
| Kozuki Oden | Kouzuki Oden |
| Kraft Work | Arts & Crafts |
| Kraken Isaak | Kraken Isaak, Isaac, Isaak |
| Krank | Toushin Kuranku |
| Kratos | Ghost Of Sparta,God Of War |
| Krem | Krebskulm, Kulm |
| Kriemhild | Gudrun |
| Krilalaris | Krila |
| Krillin | Kuririn |