Shuichi Kitaoka (北岡 秀一, Kitaoka Shūichi) is Kamen Rider Zolda (仮面ライダーゾルダ, Kamen Raidā Zoruda, Masked Rider Zolda), the fourth of the 13 Kamen Riders the story revolves around, though serving as the third main Rider in the series. A defense lawyer who was diagnosed with cancer, he participates in the Rider Fight in order to fulfill his wish of becoming immortal.