Tadahisa Saizen (西前 忠久, Saizen Tadahisa, September 25, 1964) is a Japanese voice actor from Osaka City, Osaka Prefecture. He is affiliated with Arts Vision. Previously was affiliated with Kansai Geijutsuza and Theater Company Zenshinza.
Kinoko Nasu is a Japanese writer and screenwriter, best known as the main creator of the Nasuverse and co-founder of Type-Moon. He is the author of works such as Fate/stay night, Tsukihime, and The Garden of Sinners.