Yoku Shioya is a Japanese actor and voice actor who has left an indelible mark on the anime industry through his memorable performances, most notably as the voice of Ryota Miyagi in Slam Dunk and Will A. Zeppeli in JoJo's Bizarre Adventure. Born under the real name Tsubasa Shioya, he entered the entertainment world as the younger brother of the late voice actor K?z? Shioya, and his career has spanned decades, encompassing both on-screen acting and extensive voice work. Shioya made his debut in 1972 with a role in Triton of the Sea, a landmark anime that helped launch his path into voice acting during the formative years of the medium.

Over the course of his career, Shioya became a familiar presence in classic and contemporary anime, lending his voice to a wide array of characters. His portrayal of the quick-tempered yet skilled point guard Ryota Miyagi in Slam Dunk remains one of his most iconic roles, endearing him to generations of fans of the basketball-themed series. He also brought to life the charismatic and heroic Will A. Zeppeli in the first season of JoJo's Bizarre Adventure, a performance that showcased his ability to convey both intensity and warmth. Beyond these standout roles, Shioya’s voice can be heard in numerous other series, including Mobile Suit Gundam and Dr. Slump, demonstrating his versatility across genres.

In addition to his work as a voice actor, Shioya has also contributed to the anime industry as a voice director, taking on the role of sound director for series such as Basilisk: The Kouga Ninja Scrolls. This behind-the-scenes work allowed him to shape the performances of other actors and further cement his reputation as a skilled professional. Despite the passing of his older brother, who was also a prominent voice actor, Shioya has continued to work steadily, appearing in both new projects and nostalgic revivals of classic series. With a career that began in the early 1970s and continues to this day, Yoku Shioya stands as a respected figure in Japanese entertainment, known for his distinctive voice and lasting contributions to anime.