Katsuyuki Konishi (小西 克幸, Konishi Katsuyuki?) (April 21, 1973) is a prolific Japanese male seiyū from Wakayama, Wakayama Prefecture. He is currently affiliated with Ken Production. His bloodtype is B and his debut role was Volfogg/Big Volfogg in GaoGaiGar. 小西克幸 on Last.fm.