Yoichi Miyagawa was a Japanese voice actor born on March 28, 1928, in Kushiro, Hokkaido, Japan. He passed away on March 19, 2001. His career as a voice performer included significant work in anime television series, animated films, and Japanese dubbing of foreign movies.

In the realm of anime, Miyagawa is known for several key roles. He portrayed Ben Weatherstaff in the 1991 NHK anime series "Himitsu no Hanazono," an adaptation of the classic novel "The Secret Garden". His other anime credits include the role of Vice Premier Kutuzov in the 1982 animated film "Future War Year 198X". He also voiced the character Yasuzaemon in the series "Animated Classics of Japanese Literature" and played Erich von Saartz in an episode of the television series "Cat's Eye".

Beyond his work in original Japanese animation, Miyagawa was extensively involved in providing voice-overs for foreign films and television series for the Japanese market. His dubbing portfolio includes lending his voice to Obi-Wan Kenobi in a television broadcast of "Star Wars: The Empire Strikes Back," Marcus Brody in "Raiders of the Lost Ark," and Captain Copper in "The Thing". He also voiced characters in Japanese dubs of "Firefox," "The Testament," and the television miniseries "Shogun". This body of work demonstrates a career focused on both animated series and the dubbing of international live-action productions.