Katsuyuki Konishi (小西 克幸, Konishi Katsuyuki) is a Japanese voice actor from Wakayama, Wakayama. He is affiliated with Ken Production. His debut role was Volfogg/Big Volfogg in GaoGaiGar. He's mostly known for giving his voice to two tall blonde and strong heroes, Laxus Dreyar from Fairy Tail and Tanktop Master from One Punch Man. He's also known for voicing the two characters from the same anime, Keigo Asano and Shuhei Hisagi, both from Bleach. Recently, he's been gaining recognition as Diavolo from JoJo's Bizarre Adventure: Golden Wind, Jonathan Joestar from the Phantom Blood film, and Tengen Uzui from Demon Slayer: Kimetsu no Yaiba. He was the special guest at the 2010 Anime Expo in Los Angeles, USA, where he met his fans and revealed that his favorite anime character was Kamina from Tengen Toppa Gurren Lagann; also adding that each character whom he voiced is important to him. Konishi was awarded the Best Supporting Actor Award in the 9th Annual Seiyu Awards on March 6, 2015.