The Boy with the Red Scarf has appeared several times throughout South Park as a background, or filler, character. His name remains unknown. His first appearance was in "Tweek vs. Craig" as one of the students viewing the fight between Tweek and Craig. He also made an appearance in "Super Fun Time" as a member of the Boys' class on a field trip to the Pioneer Village. In "Funnybot", he received his first speaking role outside of a group, when he screams "It's the Germans!"
He wears black shoes, gray pants, a dark blue coat, and a red scarf with black stripes. He has brown hair.
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- "Jewbilee"- Seen without his scarf becoming a Jew Scout.
- "Tweek vs. Craig" - He is shown watching the fight.
- "Mr. Hankey's Christmas Classics"
- "Chinpokomon" - Seen fighting over a toy with Bradley Biggle.
- "Cartman's Silly Hate Crime 2000"
- "Cartman Joins NAMBLA" - Seen with an older man.
- "Casa Bonita" - He is shown walking in the hallway when Cartman beats up Jimmy.
- "Butt Out" - Seen watching the Butt Out program.
- "Raisins" - Shown eating at Raisins.
- "Stupid Spoiled Whore Video Playset" - Seen at Bebe's party.
- "The Return of Chef"
- "Eek, A Penis!" - Seen in hallways; background only.
- "Super Fun Time" - He appears at Pioneer Village as a part of the field trip as Annie Faulk's partner.
- "Eat, Pray, Queef"- Briefly seen in the distance in the hallway.
- "Butters' Bottom Bitch"
- "Crème Fraiche" - Seen standing in line in the cafeteria.
- "Funnybot" - He screams "It's the Germans!" in the hallway.
- "Bass to Mouth" - Seen in the hallways.
- "1%" - Seen in the gym.
- "The Poor Kid" - Seen in the crowd of students in the hallway.
- "Cash For Gold" - Seen in the background on the playground.
- "Faith Hilling" - Seen exiting the school with the other children.
- "Jewpacabra" - Seen at the Easter egg hunt.
- "Butterballs" - Seen in the background in the cafeteria and in the hallways.
- "Cartman Finds Love" - Seen in the background in the school's hallways.
- "Sarcastaball" - Seen in the background in the locker room.
- "A Scause For Applause" - Seen in the background in the school hallways talking to Jason.
- "Gluten Free Ebola"- Seen at the boys party.
- "The Cissy"- Briefly seen in the school hallway.