Bloody Mary - S9-E14
Trivia: In one shot of the episode Bloody Mary, about 14 minutes into the episode, you can see a "Visitor" from previous episodes to the right side of Randy, when he is talking to Stan. The alien is only visible for around seven seconds. (00:14:00)
Trivia: Season 27, episode 2 - "Got a Nut": This episode, which sees Cartman as a caricature of right-wing political commentator Charlie Kirk, was pulled from the air following Kirk's assassination at Utah Valley University. This is despite Kirk himself being a fan of the parody, even using the image of Cartman on his social media. Some of Kirk's fans even blamed this episode as a contributing factor in his murder and demanded that South Park be cancelled altogether.
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.
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