|This article is about a/an ally in GoGo Sentai Boukenger.|
Kouichi Akashi (明石 虹一 Akashi Kōichi, Movie): Satoru's father and a UMA Hunter. He responds to Muse's call to obtain a strange prehistoric insect said not to exist. He and Satoru had been distanced because of their thoughts about what's an adventure. After confronting Hyde Gene, Kouichi acknowledges Satoru as an adventurer and a son to be proud of. Portrayed by Yasuaki Kurata (倉田 保昭 Kurata Yasuaki).
- Andrew Hartford - Power Rangers counterpart in Power Rangers Operation Overdrive. See comparison page.