| Seiyuu | Role |
| Aya Hisakawa | Youko Nakajima |
| Takehito Koyasu | Keiki |
| Yuuji Ueda | Ikuya Asano (Episode 1 - 5, 14, 27 - 38) |
| Kappei Yamaguchi | Enki Rokuta |
| Houko Kuwashima | Shoukei (Episode 23 - 40) |
| Naomi Wakabayashi | Suzu (Episode 17, 23 - 39) |
| Aya Ishizu | Yuka Sugimoto |
| Kenichi Suzumura | Rakushun |
| Masaki Aizawa | Shouryuu (Naotaka Komatsu) |
| Rie Kugimiya | Taiki (Episode 15 - 21) |
| Yukana Nogami | Youka (Episode 15 - 21) |
| Tomomichi Nishimura | Enho |
| Seiji Sasaki | Seikyou |
| Kenji Nojima | Sekki (Episode 30, 32 - 39) |
| Yasunori Matsumoto | Kantei (Episode 30, 33 - 40) |
| Tomoko Kawakami | Rangyoku |
| Chiemi Chiba | Keikei |
| Toru Ohkawa | Shoukou (Episode 30 - 34, 36, 37) |
| Kazuya Nakai | Gaishi (Episode 30, 33, 34, 36 - 38) |
| Mami Kingetsu | Shuukanchou |
| Kousuke Okano | Kaname Takasato (Episode 13, 15, 20, 21) |
| Yuko Sasaki | Kourin (Episode 3 - 6, 8, 10, 12 - 14) |
| Takaya Hashi | King Kou (Episode 3 - 6, 8, 12 - 14) |
| Tomoko Kaneda | Gyokuyou (Episode 3, 5, 7, 8, 27, 28) |
| Sayuri | Bishin (Episode 5, 7, 8, 27, 28) |
| Hiroshi Yanaka | You Shukou (Episode 10 - 12, 40 - 42, 44) |
| Masako Katsuki | Sanshi (Episode 15 - 19, 21) |
| Megumi Toyoguchi | Teiei (Episode 11, 15 - 19, 21) |
| Kousuke Okano | Aozaru |
| Kousuke Okano | Hankyo |
| Shouko Tsuda | Hekikagenkun Gyokuyou (Episode 15, 17, 18, 20, 21) |
| Akira Ishida | Kenrou Shinkun Kouya (Episode 16, 17, 19, 41 - 45) |
| Keiji Fujiwara | Gyousou (Episode 18 - 21) |
| Minami Takayama | Suibikun Riyou (Episode 23 - 25, 27) |
| Akiko Hiramatsu | Seishuu (Episode 28 - 30, 32) |
| Wakana Yamazaki | Kyouou (Episode 26 - 28, 40) |
| Ai Satou | Youko's Mother (Episode 1, 3 - 5, 7, 13) |
| Naomi Shindou | Risai (Episode 18 & 19) |
| Naomi Shindou | Kaiko (Episode 1 - 3) |
| Jin Horikawa | Watanabe-sensei (Episode 1 & 5) |
| Shouko Tsuda | Takki (Episode 3 & 4) |
| Kumiko Takizawa | Rakushun's Mother (Episode 6) |
| Hideyuki Tanaka | Heki Rakujin (Episode 9, 10, 12, 14) |
| Masako Katsuki | Ribi (Episode 11, 41 - 43) |
| Rie Kugimiya | Shoushun (Episode 11) |
| Narumi Hidaka | Yokuhi (Episode 11 & 43) |
| Aya Ishizu | Rokuta (as a child Episode 11) |
| Eriko Kawasaki | Isai (Episode 10 & 12) |
| Jin Horikawa | Jouyuu (Episode 12 - 14) |
| Toshiko Fujita | Jokaku (Episode 12, 14, 17, 20) |
| Mami Koyama | Joei (Episode 13) |
| Yumi Touma | Renrin (Episode 15) |
| Hisako Kyouda | Kaname's Grandmother (Episode 15 & 16) |
| Daisuke Sakaguchi | Suguru Takasato (Episode 15 & 20) |
| Junko Noda | Suguru Takasato (as a child Episode 15 & 16) |
| Hisao Egawa | Goson (Episode 16 - 18) |
| Toru Ohkawa | Kaname's Father (Episode 16) |
| Yuuji Ueda | Gouran (Episode 19 & 21) |
| Fumihiko Tachiki | Ganchou (Episode 19) |
| Katsuyuki Konishi | King Hou (Episode 21) |
| Daisuke Sakaguchi | Hakuchi (Episode 21 & 23) |
| Kazuya Nakai | Chuchin (Episode 22) |
| Hirofumi Nojima | Prince Kou (Episode 22) |
| Yuko Satou | Princess Kou (Episode 22) |
| Tomomichi Nishimura | Chikanchou (Episode 22, 25, 26) |
| Mitsuru Ogata | Shunkanchou (Episode 22, 24, 26) |
| Jin Horikawa | Tenkan (Episode 22 & 24) |
| Masahiko Tanaka | Gekkei (Episode 23, 26, 40) |
| Rumi Ochiai | Kaka (Episode 23) |
| Mamiko Noto | Suzu's Sister (Episode 23) |
| Kappei Yamaguchi | Toukanchou (Episode 23 & 36) |
| Kazuhiro Nakata | Gahou (Episode 24 & 33) |
| Motomu Kiyokawa | Tenkanchou (Episode 24 & 25) |
| Toshihiko Nakajima | Chuushougun (Episode 25, 26, 39) |
| Mayumi Yamaguchi | Seishuu's Mother (Episode 29) |
| Yoshihisa Kawahara | Hyouki (Episode 29, 35 - 37) |
| Takehiro Murozono | Kakugo (Episode 32, 37, 38) |
| Kouji Ishii | Shoushiba (Episode 35 & 37) |
| Jin Horikawa | Saibou (Episode 29, 35, 37) |
| Kenji Nomura | Koukan (Episode 39 & 40) |
| Toru Ohkawa | Kyouki (Episode 27 & 28) |
| Katsuhisa Houki | Itan (Episode 41, 42, 44) |
| Mitsuaki Madono | Seishou (Episode 41, 42, 44) |
| Mitsuru Ogata | Ekishin (Episode 41 & 45) |
| Emi Motoi | Kouya (as a child Episode 41 & 42) |
| Kinryu Arimoto | Hakutaku (Episode 42 - 45) |
| Sakiko Tamagawa | Meishin (Episode 43 & 45) |
| Hidekatsu Shibata | Genkai (Episode 43 & 45) |
| Jouji Nakata | Koutetsu (Episode 7, 8, 28) |