Yūsuke Katagiri is a Japanese voice actor born on September 20, 1984, in Tokyo. He began his career in the mid-2000s and was formerly affiliated with the talent agency Yellow Tail as one of its rookie members, a relationship that continued until October 2013. Following his time with Yellow Tail, he became a freelancer. In the industry, he is also known by the alias Isamu Kurusugawa, which he uses for work in adult-oriented content.

Katagiri's body of work is extensive, with a significant focus on voice acting for visual novels. One of his notable and recurring roles is Kisuke Arita in the Hanayaka Nari, Waga Ichizoku series. He first voiced the character in the 2010 visual novel and reprised the role for its subsequent installments, Hanayaka Nari, Waga Ichizoku Kinema Mosaic in 2011 and Hanayaka Nari, Waga Ichizoku Tasogare Polar Star in 2013. His performance as Arita was also featured in the 2012 to 2013 anime television special adaptation, Hanayaka Nari, Waga Ichizoku: Kinetograph. The character Kisuke Arita is depicted as a friendly 27-year-old information seller who provides advice to the protagonist and the brothers within the story's universe.

Beyond this series, Katagiri's career under his own name includes roles in other visual novels such as Furuiro Meikyuu Rondo ~HISTOIRE DE DESTIN~ in 2012 and Re;quartz in 2014. His portfolio is even more substantial when including the credits under his alias, Kurusugawa Isamu. Using this name, he has contributed to numerous titles, particularly in the visual novel and adult OVA genres. Examples from the visual novel medium include roles in the What a Beautiful People... series, such as Zakh Murray in Shikkoku no Sharnoth ~What a beautiful tomorrow~, and parts in the Sengoku Hime series, among many others. His work under the Isamu Kurusugawa alias also encompasses a variety of original video animation projects from the early 2010s, with roles in series like Peace Hame!, Junjou Shoujo Et Cetera, and Ane Kyun! Joshi ga Ie ni Kita!.