Maki Sakai as Rui

Takahiro Nishijima as Kosuke

Tatsuya Fuji as Tony Tanaka

Mariko Kaga as Toba-chan

Sawa Suzuki as Nanako

Sei Hiraizumi as Gou Inoue

Masato Hagiwara as Doctor Mizutani

Ryosei Tayama as shop owner

Kimiko Yo as Yasuko Tanaka

Sansei Shiomi as library director

Reiko Kusamura as Mrs. Katsuragi

Kyūsaku Shimada as Editor Kuraki

Daikichi Sugawara as Professor Ishibashi

Tōru Shinagawa as bus dispatcher

Saburo Tamura as professor Ootani

Yoshiyuki Morishita as Sasajima

Wakaba Irie as Sasajima's mother