Saikachi as Mogura Beastman/Ten-Faced Demon Gorgos (human rock face) (voice) Ushio Akashi as Elder Bago Ritsuo Sawa as Ten-Faced Demon Gorgos (voice) Hirohisa Nakata as Great Emperor Zero Osamu Saka as The Ruler of Garanda Empire (voice) Gorō Naya as the Narrator Songs Opening theme Lyrics: Shotaro Ishinomori Composition: Shunsuke Kikuchi Artist: Masato Shimon Ending theme Lyrics: Saburō Yatsude Composition: Shunsuke Kikuchi Artist: Masato Shimon with the Columbia Yurikago-kai Episodes: 1-14 (1st Verse); 15-24 (2nd Verse) References Amazon 1974 Japanese television series debuts 1975 Japanese television series endings TV Asahi original programming 1970s Japanese television series Japanese horror fiction television series