Saeko Shimazu as Lunn (voice)

Kazuhiko Inoue as Akira Toyoda (voice)

Kei Tomiyama as Nanpei Miwa (voice)

Atsuko Mine as Wife (voice)

Keaton Yamada as Math Teacher (voice)

Kenichi Ogata as English Teacher (voice)

Koichi Kitamura as Japanese Teacher (voice)

Shozo Iizuka as Akira's Father (voice)

Hisako Kyoda as Housekeeper (voice)

Tetsuya Yamazaki as Baseball Club Member A (voice)

Ken Yamaguchi as Baseball Club Member B (voice)

Ryo Horikawa as Classmate (voice)

Ai Satou as Girlfriend (voice)