Dr. Heathcliff Huxtable is a fictional character and the protagonist of the NBC sitcom The Cosby Show, which aired from 1984 to 1992. He was portrayed by actor and comedian Bill Cosby and appeared in all 201 episodes of the show.

The Cosby Show is an American television sitcom created by and starring Bill Cosby that aired on NBC from September 20, 1984, to April 30, 1992, with a total of 201 half-hour episodes spanning eight seasons, including an outtakes special. The show focuses on the Huxtables, an upper middle-class African-American family living in Brooklyn, New York; the series was based on comedy routines in Cosby's stand-up comedy act, which in turn were based on his family life. The series was followed by a spin-off, titled A Different World, broadcast from 1987 to 1993 for 144 episodes in six seasons.