Ryohei Arai (荒井良平, Arai Ryōhei) (22 October 1901 – 22 October 1980) was a Japanese film director. He directed films from the 1930s to 1950s, especially jidaigeki and ghost movies based on kaidan.
Source: “Ryohei Arai (director)”, English Wikipedia (CC BY-SA 4.0), excerpt