- Rie Kugimiya
- Â Hotaru Imai 26 episodes, 2004-2014
- Romi Park
- Â Natsume Hyuuga 26 episodes, 2004-2014
- Kana Ueda
- Â Mikan Sakura 26 episodes, 2004-2014
- Sakiko Uran
- Â Takahashi-san 5 episodes, 2004-2014
- Sarah Hauser
- Â Yuu Tobita 5 episodes, 2004
- Masaya Takatsuka
- Â Jidou 3 episodes, 2014
- Junko Ueda
- Â Pigeon 1 episode, 2004
- Noriko Shitaya
- Â Student A 1 episode, 2014
- Mamoru Miyano
- Â Noda-sensei unknown episodes
- Daisuke Ono
- Â Doctor unknown episodes
- Takahiro Sakurai
- Â Male Student B unknown episodes
- Marina Inoue
- Â Misaki Harada unknown episodes
- Akira Ishida
- Â Narumi-sensei unknown episodes
- Shin'ichirô Miki
- Â Persona unknown episodes
- Shizuka Itou
- Â Raccoon Dog unknown episodes
- Chiwa Saitô
- Â Sumire Shoda unknown episodes
- Chô
- Â Manager unknown episodes
- Tatsuhisa Suzuki
- Â Reo's Subordinate D unknown episodes
- Aya Endô
- Â Child unknown episodes
- Megumi Toyoguchi
- Â Yuri Miyazono unknown episodes
- Misato Fukuen
- Â Headphone-kun unknown episodes
- Ken'ichi Suzumura
- Â Reo Mouri unknown episodes
- Hiroyuki Yoshino
- Â Tashiro unknown episodes
- Sanae Kobayashi
- Â Kaname Sonoo unknown episodes
- Wataru Hatano
- Â Male Student A unknown episodes
- Masaaki Tsukada
- Â Mikan's Grandfather unknown episodes
- Ai Nonaka
- Â Nonoko unknown episodes
- Chihiro Suzuki
- Â Hiro unknown episodes
- Hirofumi Nojima
- Â Assistant Teacher unknown episodes
- Risa Hayamizu
- Â Elementary School Headmistress unknown episodes
- Fuyuka Oura
- Â Yuu Tobita unknown episodes
- Tokuyoshi Kawashima
- Â Subaru Imai unknown episodes
- Sachiko Kojima
- Â Kenji unknown episodes
- Atsushi Kisaichi
- Â Shuichi Sakurano unknown episodes
- Megumi Matsumoto
- Â Kokoroyomi-kun unknown episodes
- Keijin Okuda
- Â Reo's Subordinate C unknown episodes
- Shintarô Ôhata
- Â Male Student unknown episodes
- Yûki Masuda
- Â Homeroom teacher unknown episodes
- Makoto Naruse
- Â Tsubasa Andou unknown episodes
- Kunihiro Kawamoto
- Â Reo's Subordinate B unknown episodes
- Makiko Oku
- Â Dog unknown episodes
- Miho Yamada
- Â Serina Yamada unknown episodes
- Nobuyuki Kobushi
- Â Deer unknown episodes
- Masayo Hosono
- Â Owl unknown episodes
- Ayako Ito
- Â Rabbit unknown episodes
- Dai Matsumoto
- Â Jinno-sensei unknown episodes
- Miwa Yasuda
- Â Ruka Nogi unknown episodes
- Rie Kanda
- Â Anna unknown episodes
