Despite being a character since Season Two, Bartles was used as a background character in nearly all of his appearances, being among the least prominent 6th graders, though he still made some notable appearances. He is known to form a trio with two other 6th graders in particular, appearing alongside them in some episodes.
He finally played a major role in South Park: The Fractured But Whole, with his name changed to "Bartles", where he appears as one of the first bosses the player has to defeat.
Bartles is a medium-sized 6th grader with spiky brown hair. He wears a blue shirt with orange stripes and blue jeans.
- "Clubhouses" - Debut; Seen as a teenager at the party.
- "Chef Aid" - Seen as a teenager in the crowd.
- "Timmy 2000" - Seen as a teenager in the crowd.
- "Fourth Grade" - First appearance as 6th grader; Seen pushing boys in hallways with his friends.
- "The Wacky Molestation Adventure" - Seen when the children take over the town.
- "Scott Tenorman Must Die" - Seen watching Cartman's video.
- "The Entity" - Seen on the playground.
- "Toilet Paper" - Seen in detention with another 6th grader.
- "Fat Butt and Pancake Head" - Seen watching Kyle's presentation.
- "Pre-School" - Promises to defend the boys against Trent Boyett with the other 6th graders in exchange for a picture of Sharon Marsh's breasts.
- "Two Days Before the Day After Tomorrow" - Seen in the cafeteria.
- "Britney's New Look" - Seen in the crowd to take pictures of Britney Spears.
- "Breast Cancer Show Ever" - Watches Eric and Wendy's fight.
- "Elementary School Musical" - Seen singing with the other students.
- "Butters' Bottom Bitch" - Seen in the school's playground.
- "Dances with Smurfs" - Seen in the school assembly.
- "City Sushi" - Seen at the school assembly.
- "Cash For Gold" - Seen in the on the playground.
- "Jewpacabra" - Seen in the Easter egg hunt.
- "Butterballs" - Seen at the school assembly.
- "You're Not Yelping" - Seen having lunch with his father at Whistlin' Willy's.
- "Hummels & Heroin" - Seen watching Marcus Preston's speech.
- "SUPER HARD PCness" - Seen at the gym during the bombing of Canada.
- "Buddha Box" - Seen in the playground.
- "Bike Parade" - Appears at the end of the episode.
- ""South Park" Pre-School (TV episode 2004)". IMDb.com.