the episode since getting the rights for the catchphrase cost nearly as much as hiring Buffer for a guest appearance. Parker and Stone both said Buffer was friendly and they enjoyed working with him. Voice actor Mike Judge, star of Beavis and Butt-Head and King of the Hill, had originally been slated to provide the voice of the Damien character, and even recorded several lines for the part. However, since Judge lives in Austin, Texas, it proved too difficult for him to come back and rerecord lines as the script and episode changed, so Stone instead provided the character's voice. Judge later provided Kenny's un-muffled line when he removed his parka in South Park: Bigger, Longer & Uncut. By the time "Damien" was animated, much of the drawing and animation responsibilities that had previously been handled by Parker and Stone were now being delegated to a team of animators. The duo were particularly proud of the animation during the boxing match between Jesus and Satan, which used elements of perspective and three-dimension seldom used in the series before; Parker said it was "definitely the most action [oriented] stuff we'd done [so far]". While animating Jesus, Parker and Stone deliberately left glitches in the animation that made it appear skin was showing beneath the beard on the left-hand side of the character's face. Parker said this was done because it was the way Jesus appeared in the crudely animated The Spirit of Christmas, a 1995 animated short film by Parker and Stone that served as a precursor to South Park, and they wanted to maintain that nuance for the character. Parker and Stone said a number of Cartman's characteristics which have endured throughout the South Park series started in "Damien". Specifically, his voice took on a higher-pitch that was more nasally and whiney than in previous episodes; Stone described it as a "self-indulgent accent". Some of his regular vocal mannerisms were also developed in the episode, including his use of the sound "Nyah" while saying the word "Here", and the way he says "Hey you guuuuuuys" while talking to his friends. Parker, who provides the voice of Cartman, said the characteristics came about naturally while filming the episode: "This show for some reason, for whatever reason, maybe I just lost interest, but I was trying all these messed up things with him and all these things sort of stuck." "Damien" included