Shigeo Takamatsu is a Japanese actor and voice actor born in Tokyo on November 25, 1943. His career in entertainment began in live performance; he initially worked as an assistant to the singer Ichiro Rose, the first Columbia Rose, before training under the comedy duo Haruno Peachiku and Paruku. As a comedian, he formed the manzai duo Haruno Chick & Tack with Haruno Chick, performing together for nine years before the partnership dissolved. Following this, he expanded his career to include voice acting, comedy, and on-screen acting.

Takamatsu is known for his voice role in the anime series Ijiwaru Baasan. In the 1970 anime adaptation of Machiko Hasegawa's manga, he provided the voice for the titular character, Baasan, also known as Ishi. This role is notable as he voiced the elderly female protagonist, a casting choice that contributed to the character's unique presence. His other voice acting credits from the late 1960s and early 1970s include roles in anime such as Popeye, where he voiced the character Popeye, Yowamushi Kurupper as Boropin, Doradora Neko to Chakachaka Musume as Kizaton, and the Japanese-language dubs of foreign series like Archie's Weird Mysteries as Jughead and Sabrina the Teenage Witch.

Beyond voice acting, Takamatsu built a substantial career as a screen actor in film and television during the 1970s. His film appearances include roles in movies such as Wakadaishō tai Aodaishō and Nippon ichi no shokku otoko. On television, he had guest roles in numerous jidaigeki and detective dramas, including Kiba Ōshō, Ikari no Dōga, and Taiyō ni Hoero. He also appeared in the television series Ningen Kakumei.