Katsumasa Uchida (内田勝正, Uchida katsmasa, 19 September 1944 - 31 January 2020) was a Japanese actor. He is most famous for playing villains and appeared in many jidaigeki and detective television dramas as a guest. Uchida graduated from Aoyama Gakuin University. In1968, he joined Yukio Mishima's Roman Gekijo Theatre Company. Uchida made 68 appearances as a guest on Mito Kōmon. (It was mostly as a guest. ) On January 31, 2020, at 4:33 p.m., Uchida died of liver cancer.