Isuzu Yamada

Natsu, the Foster Mother

Michiyo Kogure

Keiko, The Mother-in-Law

Michiyo Aratama

The Real Mother

Tatsuya Nakadai

The Engineer

Takeshi Sakamoto

Seitaro Nakahara, Seiji's father

Eiko Miyoshi

Kayo Nakahara, Seiji's mother

Yutaka Nakayama

Katayama

Haruya Katō

Sakata

Haruo Tanaka