"Want some more information???"This article is incomplete. Please help the Clarence Wiki by adding more information in it.Thank you! Gunnar Sizemore is the voice of Cooter in Clarence. Retrieved from "https://clarence.fandom.com/wiki/Gunnar_Sizemore?oldid=39059" Categories: Article stubs Real Life Voice actor Show Staff Community content is available under CC-BY-SA unless otherwise noted.