十八歳

Takaaki Hashiguchi

Yönetmen

Moto Ôno

Kei Kusumoto

小林節彦

Seiichi Yanagihara / Kei's father

Natsuhiko Ueda

Yuji Inoue, the tutor

伊藤清美

Sawako Kusumoto, Kei's mother