Shigeru Nishiyama (西山 茂, Nishiyama Shigeru, born April 16, 1956) is a Japanese editor, president and CEO of Real-T company. Shigeru has worked on many works by J.C. Staff, A-1 Pictures, Bones and Mamoru Hosoda (細田 守). He mainly edited Toei animation works in Tavac, but became independent in March 2006 and established editing studio Real-T.

Filmography