Isao Takahata Director Mikijirō Hira Grunwald the Demon of Ice Voice Etsuko Ichihara Hilda Voice Eijiro Tono Ganko the blacksmith Voice Masao Mishima Village Leader Voice Yasushi Nagata Drago Voice Hisako Okata Hols Voice Hisashi Yokomori Horu's Father , Toto Voice Tadashi Yokouchi Paul , Moog the Rock Giant Voice Asako Akazawa Piria Voice Taisaku Akino Rusan Voice Noriko Ohara Chiro Voice Kazuo Fukazawa Screenwriter Hiroshi Ohkawa Executive Producer Michio Mamiya Original Music Yukio Katayama Cinematographer Jiro Yoshimura Cinematographer Yutaka Chikura Film Editing Mataji Urata Art Director