Cluck is a duck who follows the Cosby Kids in early episodes of the show but hasn't made any other appearances, apart from the original season 1 intro used up until 1976, as well as one shot of the 1979 intro. He only appeared in "The Runt" and "Fish Out of Water", as well as a brief cameo in "The Hospital".
Trivia[]
- He resembles and sounds like the Disney character, Donald Duck.