Kumiko Takizawa as Daughter / Small Robot (voice)

Katsue Miwa as Fukusuke (voice)

Chisa Yokoyama as Yayoi (voice)

Kohji Moritsugu as The Main Character (voice)

Keiko Hanagata as Grandma (voice)

Aya Murata as Daughter (child) (voice)

Nariko Fujieda as Grandchild (voice)

Satoru Inagaki as Man A (voice)

Hideyuki Umezu as Colleague / Man B (voice)

Ikuya Sawaki as Man C (voice)

Hidehiro Kikuchi as Child A / Child D (voice)

Daisuke Namikawa as Child B (voice)

Tatsuhiko Nakamura as Child C (voice)

Kei Tomiyama as Sankichi (voice)

Kaneto Shiozawa as Denjiro (voice)

Toku Nishio as Daimaru (voice)

James R. Bowers as John Jack Volkerson III (voice)

Hikaru Kotono as The Android Girl (voice)