Haha no nai ko to ko no nai haha to

Jūkichi Uno

as

Ichiro's dad

Tanie Kitabaya...

as

Aunt Otora

Masao Shimizu

as

Principal

Shinji Tanaka

as

Ichiro

Yasuhei Koseki

as

Shiro

Yumi Takano

as

Ichiro's mom

Bokuzen Hidari

as

Shiro's grandpa