The Passion of the Jew - S8-E3
Continuity mistake: When Kyle slides a $10 bill into the ticket booth, the $10 bill is shown lying left to right. After a couple of cuts to where the ticket taker is saying "But this is such an important film..." the $10 bill has changed positions. (00:03:00)
Answer: He appears in at least 5 other episodes, but usually just as a background character. He can be seen at Cartman's party in "Immaginationland". He was also one of the kids trying out to replace Butters in the "Professor Chaos" episode.
Bishop73