watch 01:48 The Loop (TV) Do you like this video? This article is about a/an actor in Kamen Rider Den-O. Akira Nagata (永田 彬, Nagata Akira, born January 22, 1985) is a Japanese vocalist and actor currently part of the J-pop group Run&Gun. He played Seigi Ozaki in Kamen Rider Den-O. He also played Seikichi, Seigi's ancestor, in Saraba Kamen Rider Den-O: Final Countdown. External links Akira Nagata at Wikipedia Retrieved from "https://kamenrider.fandom.com/wiki/Akira_Nagata?oldid=289276" Categories: Kamen Rider Den-O Actors Community content is available under CC-BY-SA unless otherwise noted.