In Japan, Nishimura is well known for playing the role of the title character in the long-running television jidaigeki series Mito Kōmon from 1983 to 1992.[2] He also portrayed the voice of the "Mamo/Howard Lockewood" in the original Japanese version of anime film The Mystery of Mamo in 1978.
In July 2019, Tokyo's Cinemavera Shibuya honored him with a film festival celebrating both Nishimura and Yūnosuke Itō, another popular character actor who attained high status in Japan's entertainment industry.[3]