Katsuya Maiguma is a Japanese actor who was born on March 28, 1987, in Fukuyama, Hiroshima Prefecture. He is affiliated with the talent agency alpha agency. His career has been primarily focused on live-action film and television, where he has built a substantial body of work since his debut around 2010. His performance in the 2016 film "Ken and Kazu" earned him several newcomer awards, including the Sponichi Grand Prix Newcomer Award at the 71st Mainichi Film Competition. He has appeared in numerous acclaimed projects, such as the 2018 film "Shoplifters" and the television dramas "The Crimes of Those Women" and "SEXY Tanaka-san," the latter of which won him the Best Supporting Actor award at the 118th The Television Drama Academy Awards in 2024.

Maiguma's sole identified credit in voice acting is for the role of Yamato in the 2025 anime film "Mumei no Jinsei" (Nameless Life). His casting was part of a diverse group that included live-action actors, comedians, and up-and-coming voice actors. This role appears to be an isolated venture into voice acting, as all other available information confirms his career focus is on on-screen performances. Therefore, no recurring voice acting collaborations or notable achievements specifically within the voice acting field can be detailed.