Joe Yamanaka was a Japanese singer, actor, and musician who also performed voice acting work. Born on September 2, 1946, in Yokohama, Kanagawa Prefecture, Japan, he was known for his extensive career in music and film before his death on August 7, 2011[citation:][citation:][citation:]. While primarily celebrated as a musician, including as the lead singer of the band Flower Travellin' Band, his contributions to anime include a notable voice role[citation:].

Yamanaka's most recognized and, based on available records, sole credited role in an animated voice acting capacity came in the 1981 theatrical film, Tomorrow's Joe 2, the sequel to the classic boxing anime and manga series. In this film, he provided the Japanese voice for the character Carlos Rivera, a world-ranked boxer from Venezuela who is recruited to help the protagonist, Joe Yabuki, recover his fighting spirit[citation:][citation:][citation:][citation:]. Beyond his voice performance, Yamanaka also contributed his musical talents to the same production, performing the film's theme song and handling the song's composition and lyric writing[citation:].

Information regarding his career specifically as an anime voice actor is limited to this singular project, and no recorded instances of recurring collaborations with particular animation studios, directors, or other voice actors are available from his work in this field. His most significant achievements are found in his wider career as a recording artist and live-action actor rather than in voice acting, making his role in Tomorrow's Joe 2 a brief but distinctive part of his artistic legacy[citation:][citation:].