Boy

The role of the boy was cast by searching in Tokyo children's homes, eventually finding the young orphan Tetsuo Abe. Abe's own life resembled the fractured childhood of the character he was to play, and he was allowed to join the production with the children's home's permission. After the film's release, Abe was put up for adoption but refused it and chose to stay at the children's home's. He would never act again.

While the boy is wandering through a village it is night time, at the ocean inlet it's dawn, but the following scenes are at night time again.