Shigeru Matsuzaki, born Shigeyuki Matsuzaki on November 19, 1949, is a Japanese singer and actor whose distinctive husky voice has made him a recognizable figure in Japanese popular culture for over five decades. While his primary career has been in music, his vocal performances in anime and video games have introduced his work to a broad international audience. He is affiliated with the talent agency Office Walker.

Matsuzaki began his entertainment career in 1970 with the release of his debut single. He achieved significant success as a singer, with his 1977 song Ai no Memory becoming a classic of the kayōkyoku genre. His musical style is characterized by a powerful, soulful baritone-tenor voice, influenced by American soul artists like Stevie Wonder and Marvin Gaye. This vocal quality naturally lent itself to performance, leading to his most iconic anime role.

In 1982, Matsuzaki was cast as the voice of the title character in the theatrical film Space Adventure Cobra, produced by Tokyo Movie Shinsha. His portrayal of the cool and charismatic space adventurer, delivered with a husky and light-hearted tone, became closely associated with the character. He also performed the film's ballad theme song, Daydream Romance, further cementing his connection to the franchise. This role demonstrated his ability to embody a character through voice alone and remains a defining performance of his career. He later returned to the Cobra universe by performing the ending theme song, Wanderer, for the 2008 original video animation Cobra the Animation: The Psycho Gun.

Beyond his work on Cobra, Matsuzaki's voice is widely recognized in the West for his contributions to the soundtrack of the popular Katamari Damacy video game series, performing songs such as Katamari On The Swing. In 2006, he took on a voice acting role in the anime series Nerima Daikon Brothers, where he not only performed the theme songs but also voiced the lead character, Hideki. His participation in this comedic musical series, directed by Shinichi Watanabe, showcased his versatility and willingness to engage with humor and parody, adding a "too grandiose" dimension to the show's musical numbers that was appreciated by fans.

While his voice acting roles are specific, they are a notable facet of a much broader career as a recording artist and television personality. He is known for his live performances, earning him the nickname "Dinner Show King," and is a familiar face on Japanese variety programs. His work demonstrates a unique intersection of pop music, anime, and mainstream entertainment in Japan.