- Saeko Shimazu
- Lunn
- Kazuhiko Inoue
- Akira Toyoda
- Kei Tomiyama
- Nanpei Miwa
- Atsuko Mine
- Wife
- Keaton Yamada
- Math Teacher
- Ken'ichi Ogata
- English Teacher
- Kôichi Kitamura
- Japanese Teacher
- Shôzô Îzuka
- Akira's Father
- Hisako Kyôda
- Housekeeper
- Tetsuya Yamazaki
- Baseball Club Member A
- Ken Yamaguchi
- Baseball Club Member B
- Ryô Horikawa
- Classmate
- Ai Satô
- Girlfriend