Jiminy Cricket is a fictional character created by Carlo Collodi for his children's book The Adventures of Pinocchio, which Disney adapted into the animated film Pinocchio in 1940. He was appointed by the Blue Fairy in the Disney film to serve as Pinocchio's official conscience. Since his debut in Pinocchio, he made numerous other appearances.
When Stan discovers he is all alone in town after becoming Mayor, due to Roger having imprisoned everyone in "Railroaded", Jiminy appears to provide advice to him when James A. Garfield mentions that he has become Roger's puppet. Protesting that he isn't a puppet, Stan is startled by the talking cricket and steps on him.