Continuity mistake: In many episodes, the word "chef" on Chef's apron goes from lower case to upper case, within the same episode and usually happens instantly between shots with no time for him to change the apron. (00:11:10)
Continuity mistake: Butters' dad's first name changes from Chris to Steve as the series progresses.
Other mistake: Whenever Chef has his pointer finger up, if you see his hand, he has 5 fingers, but when he opens them all the way, he only has four.
Continuity mistake: Whenever you see Mr. Mackey, he has nothing connecting his glasses in the shots showing the front of his face. But in the side of his face shots, you can see he does have a connector.
Pilot: The Spirit of Christmas (Jesus vs. Santa) - S1-E1
Revealing mistake: Each time Jesus turns his head to speak to the children when he is beating Santa Claus, he has two left arms.
Pilot: The Spirit of Christmas (Jesus vs. Santa) - S1-E1
Continuity mistake: When Santa Claus is spinning Jesus over him, Jesus' beard keeps appearing and disappearing.
Cartman Gets an Anal Probe - S1-E2
Revealing mistake: When Cartman finishes talking about his nightmare in the beginning, Chef comes and you can see his hat poking out of the roof of the car. They couldn't really fix this because this episode was done out of construction paper. (00:04:10)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: When Cartman is saying how the others are trying to scare him, you can see Kyle is not stood next to him. Camera cuts and now Kyle is there. (00:04:20)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: When the bus pulls up, a stop sign is visible on the bus. When Ike goes through the second bus window, the sign has gone. (00:05:10)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: On the bus, we see there is a shot of the bus with 4 kids visible on the left hand side. However, when Ms. Crabtree swerves, a 5th kid with black hair appears out of thin air. (00:06:50)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: In the classroom there is a poster of The Laughing Cavalier in the back wall in the class. In the last shot of that scene you can notice that the poster has disappeared and is replaced with an astronaut poster. (00:09:05)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: In the classroom scene where Kyle tries to be excused from class to find Ike, Cartman sets Pip on fire as he was sitting just behind him to the the left. However in the previous shots Pip had not been sitting there, some other kid was and wouldn't have had enough time between shots to move. (00:09:05)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: We see all the cows in a single line waiting for the train. When the camera changes they are all now in a herd. (00:09:30)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: When the boys are first seen in the cafeteria, Stan is in front of Cartman. When Kyle says, "Hey look, there's Wendy Testeburger." in the next shot, Stan is now behind Cartman. (00:10:05)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: The "School Food Is Good Food" poster in the cafeteria changes fonts between shots. (00:10:50)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: After Stan vomits from Wendy talking to him at school, the vomit disappears in a few shots. (00:10:55)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: The rock Kyle throws at the alien ship appears from nowhere. (00:14:00)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: When at Stark's pond, the vomit by Stan's feet disappears. (00:16:00)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: When Cartman accidentally sets Fluffy the Cat on fire, it jumps up into the air and knocks over a picture and it falls onto the floor. When Stan, Kyle, Cartman's mom and Wendy walk into the living room in the next shot, the picture has disappeared. (00:17:45)
Cartman Gets an Anal Probe - S1-E2
Continuity mistake: The stars keep changing position (especially the sparkly big one) when Cartman is tied to the tree. (00:18:05)
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