Takatora Kureshima

Takatora Kureshima (呉島 貴虎 Kureshima Takatora?) is Kamen Rider Zangetsu (仮面ライダー斬月 [ザンゲツ] Kamen Raidā Zangetsu?, lit. "Slaying Moon"), later becoming Kamen Rider Zangetsu Shin (仮面ライダー斬月 真 [ザンゲツ シン] Kamen Raidā Zangetsu Shin?, lit. "True Slaying Moon").

He is Mitsuzane Kureshima's older brother, who was a project leader in the Research and Development branch of the Yggdrasill Corporation until he finds out the company has been compromised, usurped by Ryoma. This causes him to team up with his old enemy, Kouta Kazuraba.