Kappei Yamaguchi (山口 勝平 Yamaguchi Kappei), is a Japanese actor and voice actor from Fukuoka. He is affiliated with Gokū and 21st Century Fox. He is well known for voicing Usopp in One Piece, L in Death Note, Inuyasha in Inuyasha and Tombo in Kiki's Deliver Service. He is also the Japanese dub voice of Bugs Bunny for many Japanese dubs of Looney Tunes cartoons in Japan. In the Japanese dub of the first game of Destroy All Humans!, he voices Cryptosporidium 137.