Utsusemimaru (空蝉丸, Utsusemimaru), nicknamed "Utchy" (ウッチー, "Utchy"), is a Sengoku Period-era Samurai who was trapped in the sentient Raging Knight Dogold armor for 400 years. He assumes the role of Kyoryu Gold (キョウリュウゴールド, Kyōryū Gōrudo) with his partner, the Zyudenryu Pteragordon.