Hisashi Katsuta was born on 2 April 1927 in Tokyo,[1][2] and was educated at Seigakuin Junior & Senior High School and the Technical Institute for Wireless-Communications (now the University of Electro-Communications).
[7][8][6] His voice acting career started in 1948 when he appeared in NHK's 1948 radio adaptation of the Shi Nai'an novel Water Margin,[9] and he was contracted to the broadcaster in 1949 before being released in 1954.
[11] In addition to Dr. Ochanomizu, he also voiced Dr. Hoshi in Astroganger, Professor Tobishima in Groizer X, and Shin'ichirō Izumi in Tōshō Daimos.
[10] He also published Soshite seiyū ga hajimatta (そして声優が始まった), an autobiography that feature thirty-two voice actors with a prominent impact on Japanese culture.
[13] Katsuta died of senility on 21 February 2020, at the age of 92[11][14] in a hospital in Ōme, Tokyo; he was survived by his wife Katsumi (勝美).