Katsuyuki Konishi

In Demon Slayer: Kimetsu no Yaiba, the anime produced by the studio Ufotable, Konishi voices Tengen Uzui, the flamboyant Sound Hashira. The part arrived at a stage in his career when he was already a widely recognized performer, and it has been cited alongside Diavolo from JoJo's Bizarre Adventure: Golden Wind and Jonathan Joestar from the Phantom Blood film as one of the roles bringing him renewed attention. The character's bold, showy presence suits a voice actor whose catalog leans heavily toward commanding and charismatic figures, and Tengen Uzui stands among the most prominent additions to his later filmography.

Born on April 21, 1973, Konishi made his debut as Volfogg, also known as Big Volfogg, in GaoGaiGar. He went on to build a substantial body of work in anime, becoming best known for Kamina in Tengen Toppa Gurren Lagann, Laxus Dreyar in Fairy Tail, and Tanktop Master in One Punch Man. From the early 2000s through 2008 he voiced Phoenix Ikki across the Hades Saga of Saint Seiya, and he handled two separate roles in Bleach, Keigo Asano and Shuhei Hisagi. His range across heroic leads, rivals, and supporting characters has made him a steady fixture in long-running series.

Konishi appeared as the special guest at the 2010 Anime Expo in Los Angeles, where he met with fans and named Kamina from Tengen Toppa Gurren Lagann as his favorite among the characters he has played, while noting that each of his roles holds personal importance to him. On March 6, 2015, he received the Best Supporting Actor Award at the 9th Annual Seiyu Awards, recognition that reflects his standing within the Japanese voice acting industry.