Hanzo the Razor (かみそり 半蔵 Kamisori Hanzō) is a fictional character featured in the trilogy of Japanese jidaigeki films of the same name. The films star Shintaro Katsu (known for his role as Zatoichi) as the title character. He also produced the trilogy through his own Katsu Productions. Lead actresses differ in each film; they include Yukiji Asaoka playing the character Omino in Hanzo the Razor: Sword of Justice. The story is based on the manga Goyōkiba (御用牙) by Kazuo Koike, whose Lone Wolf and Cub manga was also adapted as a film series by Katsu, this time starring his brother, Tomisaburo Wakayama.