Nozomi Sasaki
Nanami Takahashi (voice) (26 eps)
Hiroshi Yazaki
Motoharu Yano (voice) (26 eps)
Takuji Kawakubo
Masafumi Takeuchi (voice) (26 eps)
Erina Nakayama
Yuri Yamamoto (voice) (26 eps)
Kaori Shimizu
Mizu-chin (voice) (25 eps)
Yuka Terasaki
Taka-chan (voice) (21 eps)
Rion Kako
Student (voice) (18 eps)
Toshiyuki Toyonaga
Tamachi (voice) (13 eps)
Naoto Kaiho
Mamoru (voice) (11 eps)
Yuriko Fuchizaki
Yano's mother (voice) (10 eps)
Miki Ohtani
Student (voice) (10 eps)
Kouta Suzuki
Ryo (voice) (9 eps)
Atsuko Enomoto
Ayaka Takeuchi (voice) (8 eps)
Hiroshi Shimozaki
Student (voice) (8 eps)
Yurin
Nana Yamamoto (voice) (6 eps)
Erika Tachibana
Student (voice) (6 eps)
Takashi Matsuyama
Teacher (voice) (5 eps)
Yuko Sasaki
Nanami's mother (voice) (4 eps)
Satomi Hanamura
Child Yano (voice) (4 eps)
Chika Ookubo
Student (voice) (3 eps)
Kosuke Kujirai
Student (voice) (2 eps)
Hidekazu Ichinose
Kagawa (voice) (2 eps)
Suguru Inoue
Student (voice) (2 eps)
Mayumi Akado
Takeuchi's mother (voice) (2 eps)
Yuto Nakano
Teacher (voice) (1 eps)
Kumiko Itou
Student (voice) (1 eps)
Yuuna Inamura
Student (voice) (1 eps)
Takeshi Maeda
English Teacher (voice) (1 eps)
Yuka Iguchi
Student (voice) (1 eps)
Yuko Nagashima
Costumer (voice) (1 eps)
Hikaru Yamamoto
Student (voice) (1 eps)
Yuko Sanpei
Student (voice) (1 eps)
Cocoro Kikuchi
Student (voice) (1 eps)
Kyoko Chikiri
Student (voice) (1 eps)
Shizuka Okohira
Lady at the Store (voice) (1 eps)
Katsuya
Kumakura (voice) (1 eps)
Mika Ito
Student (voice) (1 eps)
Ryou Naitou
Doctor (voice) (1 eps)
Yoshiko Iseki
Yuri's mother (voice) (1 eps)
Kimiko Nakamura
Planetarium Narration (voice) (1 eps)