Takumi Hirose is the former stage name of Yutaka Hirose, a Japanese actor and voice actor born in Tokyo on August 4, 1962. He began his career in entertainment after high school, where his background in gymnastics led him to join the Toei Action Club. Early on, he became a familiar face in tokusatsu productions, often playing villainous characters that garnered him significant popularity with fans of the genre.

The name Takumi Hirose was one of several credited to the performer, who was born Kazuhisa Hirose and has been active since the mid-1980s. He changed his primary stage name to Yutaka in 1999, but his voice acting credit for the role of Lian is definitively attributed to the Takumi Hirose name. His transition to voice acting was inspired by his admiration for actor Joji Nakata, his former costar from the series Choushinsei Flashman and Choujuu Sentai Liveman.

The major voice role for which Takumi Hirose is known is that of the Space Swordsman Lian, also known as Ryan, in the 1996 anime series Brave Command Dagwon. In this series, Lian is a mechanical lifeform and the last survivor of a race of sword saints, who transforms into a sword called the Lio Sword to be wielded by other mecha in the Dagwon team. This role served as his voice performance debut. Beyond this character, his work as a voice actor is focused almost exclusively on this single, notable role, as his career was primarily dedicated to live-action tokusatsu television and film.

His live-action roles, often performed under the name Yutaka Hirose, include the part of Geki Hayami in episode 4 of Kamen Rider BLACK, a guest role cited in the user query. His extensive tokusatsu filmography includes regular or recurring parts in series like Choushinsei Flashman as Ley Wanda, Choujuu Sentai Liveman as Dr. Kemp, and Gosei Sentai Dairanger as Jin Matoba. This extensive work in the genre established him as a favorite of writer Toshiki Inoue, who created specific roles for him in several series.

A notable and recurring aspect of his career is his collaboration with director Tomomi Mochizuki, who was a fan of Hirose's work in Liveman and subsequently cast him as the voice of Lian in Brave Command Dagwon. This connection highlights how his physical performance background in tokusatsu directly informed his selection for an animated, sentient mecha role. He is also recognized for often performing his own stunts and directing action sequences for films later in his career. He has since put his acting career on hold to focus on talent management.