When Hiroshi was fighting against his rival Gorillaimo, he stumbled over a stone and fell on to a frog. To be surprised, the frog was still alive and it named itself Pyonkichi.

Mutou Reiko, born in Tokyo, Japan, was a voice actress. She is most well known for playing the voice of Elizabeth Taylor in Japanese dubbed television and films, and playing main characters in Marvelous Melmo (as Melmo), Astro Boy as Uran (Astro Girl in the English version), and Moomin (as Non Non). As a child, she found she enjoyed acting after joining the child acting troupe Gekidan Komadori.  Mutou died of acute heart failure on 29.10.2006.

Yoshiko Yamanaka