Yoshitaka Yanagita is a Japanese voice actor whose career has been primarily associated with adult anime, or hentai, productions, particularly during the 1990s. He is best known for his role as Kuroiwa in the series La Blue Girl. The character Kuroiwa is a ninja of the Mizuki clan who, along with the protagonist Miko Mido, battles the demonic Shikima clan. Yanagita’s performance in this role captured the intense and dramatic tone typical of the era’s supernatural erotic thrillers.

His career background is largely rooted in the niche market of direct-to-video adult OVAs (Original Video Animations), which were a significant part of the anime industry in the late 80s and 90s. Beyond La Blue Girl, Yanagita provided voices for other notable titles in the genre, including Urotsukidoji: Legend of the Demon Womb and the serialized anthology Cool Devices. His vocal work often involved characters that were stoic, aggressive, or villainous, fitting the dark fantasy and action-oriented plots of these productions.

Throughout his filmography, Yanagita is recognized for recurring collaborations with specific studios and production teams, particularly those known for adult animation, such as J.C.Staff and Pink Pineapple. While not widely documented in mainstream anime, his repeated presence in the casts of these projects suggests a steady working relationship with the directors and sound directors who specialized in the genre. A notable achievement in his career is the lasting recognition of his character Kuroiwa, which remains a frequently cited example of voice acting from the "1990s hentai era," solidifying his status as a recognizable figure among dedicated collectors and historians of adult anime.