- For other uses, see Bill (disambiguation).
He returned as a hologram in the Season Eighteen episode, "#HappyHolograms". Cosby is shown trying to molest pop star Taylor Swift during the Go Fuck Yourself Holiday Special. This is a reference to real life, where Cosby has been accused of raping dozens of women over the course 50 years.
Bill Cosby is elderly, having gray hair as well as various facial wrinkles. He wears a light brown coat, red sweater/vest, white shirt, a brown tie, and green pants.
He was clean-shaven in his earlier appearances on the show, but was depicted in later episodes with a beard.
- In "Trapper Keeper", the mysterious man from the future goes by the pseudonym Bill Cosby.
- In "Clubhouses", Stan Marsh watches a cartoon called, "The Fat Abbott Show", a parody of Cosby's "Fat Albert and the Cosby Kids".
- A poster for Bill Cosby's film, Ghost Dad, can be seen in Eric Cartman's basement in "Wing"
- "Here Comes the Neighborhood"
- "Stunning and Brave" (mentioned only)
- "Where My Country Gone?" (mentioned only)
- "PC Principal Final Justice" (mentioned only)