 Clyde Donovan (originally Clyde Goodman and briefly Clyde Harris), voiced by Trey Parker, maintains a friendship with the show's main characters and is among the most often-seen of the boys' extended group, playing supporting roles in several episodes.Clyde first appeared in the show's pilot episode "Cartman Gets an Anal Probe".He makes his first prominent appearance in the 1999 season 3 episode "Tweek vs. Craig" in which he tells everyone that both Tweek and Craig decided against fighting each other and went home instead.