- For other uses, see Bill (Disambiguation).
After being transformed into an actual witch, Chip Duncan began to attack Dr. Spooky's Pumpkin Patch. Billy was the first child to be kidnapped by Chip and kept in a bag of souls. Following Chip's death, Billy was later released from the bag, who runs up to embrace his father.
Billy wears a yellow shirt with brown stripes, brown pants and black shoes. He has brown curly hair.
- "Sons A Witches" - Kidnapped by Chip and later released.
- "Dead Kids" - Lends his lunch box to Cartman as a shield against gunfire. His name was revealed to be Billy in this episode.
- "Let Them Eat Goo" - Seen in the school assembly.
- "Board Girls" - Seen in the assembly.
- "Basic Cable" - Seen in the school playground.
- "Pajama Day" - Seen wearing pajamas in school on Pajama Day.
- "The Big Fix" - Seen at the school assembly.