Ryohei Odai (小田井 涼平 Odai Ryōhei, born February 23, 1971 in Konohana-ku, Osaka and raised in Kawanishi, Hyogo), otherwise known by his mononym Ryohei (涼平 Ryōhei), is a Japanese actor and voice actor probably best known for providing the voice of Orga Sabnak in Gundam Seed and portraying Shuichi Kitaoka/Kamen Rider Zolda in Kamen Rider Ryuki.