Ken Horiuchi (堀内 健, Horiuchi Ken, born 28 November 1969, in Yokosuka, Kanagawa, Japan)[2] is a Japanese comedian who performs boke in the comedy trio Neptune. He is nicknamed Horiken (ホリケン). He also creates stories for the trio.
Horiuchi's persona on stage and TV is known to be immature, childish and hyper-active. His comedic style is unique in the sense that he has little limits and often goes far or all-out in pursuing comedic effects.
He appeared in other variety and talk shows as himself. In other programmes with Neptune, Horiuchi showed how he has a profile as a solo entertainer (to see Neptune's appearances, see Neptune (owarai)).