(大橋 賢一郎 Ōhashi Ken'ichirō?, born March 24, 1982 in Tokyo), better known by the stage name KENN, is a Japanese singer, voice actor, and stage actor. He made his debut as voice actor 2004 in the Japanese anime Yu-Gi-Oh! GX (Yu-Gi-Oh! Duel Monsters GX in Japan) as Judai Yuki, the protagonist of the series and his most known role. He also performed in the musical adaptation of the popular sports anime The Prince of Tennis as Yuta Fuji, the younger brother of Seigaku's Shusuke Fuji. He was the vocalist of the rock band The NaB's. It has recently been announced that KENN will be playing the part of Ikuto in the musical adaptation of Peach Pit's manga Shugo Chara.