watch 01:39 The Loop (Movies) Do you like this video? Wikipedia has an article related to: Masi Oka Masi Oka (born December 27, 1974) is an Japanese-American actor and digital effects artist. He performed the voice of Koji in Cars Mater-National. Voices Koji Roles Cars Mater-National Trivia His full name is Masayori "Masi" Oka. Retrieved from "https://worldofcarsdrivein.fandom.com/wiki/Masi_Oka?oldid=70961" Categories: Voice Actors People Community content is available under CC-BY-SA unless otherwise noted.