Stimpson "Stimpy" J. Cat. is a three-year-old, fat, stupid cat. He first appeared in Stimpy The Ren and Stimpy show and is currently in The New Adventures of Ren and Stimpy. Retrieved from "https://fanfiction.fandom.com/wiki/Stimpy?oldid=56508" Categories: The New Adventures of Ren and Stimpy Characters Community content is available under CC-BY-SA unless otherwise noted.