Tōru Nomaguchi is a Japanese actor whose career includes work in live-action film and television as well as voice acting for anime and animated films. Born on October 11, 1973 in Fukuoka Prefecture, Japan, he is affiliated with the talent agency Duck Soup. While he is primarily known as a screen and stage actor with a prolific career in supporting roles, his voice acting credits are a notable part of his extensive body of work.

One of his prominent voice roles is Reta XV in the 2020 animated film Poupelle of Chimney Town. He also appears in a voice capacity in the 2013 project Angel Jump. His credit as Hajime Tachikawa in the 2016 live-action film Shin Godzilla is part of his substantial live-action acting resume, rather than a voice role. The role of Kei Kawakami in the series My Girlfriend's Child is not documented in the available search results.

Nomaguchi began his acting career while attending Shinshu University, where he started a theatre group called Shinzoku Daihyo. Before gaining wider recognition, he worked part-time jobs, including as a taxi driver, to support himself. His career gained significant momentum after he appeared in a recurring supporting role in the 2007 Fuji TV drama SP. Since then, he has become a prolific supporting actor, appearing in numerous television dramas and films throughout the 2010s and 2020s. His notable live-action television credits include roles in Legal High, Doctor-X, BORDER, CRISIS, and Yell. He is known for playing a wide range of characters, including detectives, teachers, doctors, and villains. His agency, Duck Soup, manages his acting engagements across both live-action and voice-over work.