Continuity mistake: In the exterior shot of the Marsh house, before the family dinner scene, the door knob is at the right side of the door, but in the following shots that door knob is at the opposite side of the door. (00:10:00 - 00:11:50)
Continuity mistake: When Randy and Stan leave the dinner table Sharon tells them about her friend Abby, and there's a table beside the front door with two drawers, but when Randy opens the front door the table now has legs and the drawers are gone, then it reverts back. (00:11:30)
Continuity mistake: When they shoot the monkeys dead, the one on the viewer's left head tilts down with his chin to his right. In the immediate next shot, his chin is to his left.
Continuity mistake: When Michael Jackson returns to Purgatory, keep an eye on Patrick Swayze. He is shown sitting on the left hand side of the front row. His clothes change from the black shirt and pants he wore in Dirty Dancing to a black fleece with a grey shirt and lighter grey pants. This clothing change occurs multiple times throughout the scene. (00:21:05)
Continuity mistake: When Randy is giving his second speech in public about the economy, he has his one fist raised, then instantly it is by his side as he turns to walk off. (00:07:30)
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