Bagpuss rag doll called Madeleine. The wooden woodpecker bookend became the drily academic Professor Yaffle (based on the philosopher Bertrand Russell, whom Postgate had once met), while the mice carved on the side of the "mouse organ" (a small mechanical pipe organ that played rolls of music) woke up and scurried around, singing in high-pitched voices. Sandra Kerr and John Faulkner provided the voices of Madeleine and Gabriel respectively, and put together and performed all the folk songs. All the other voices (including the narrator and one out-of-tune mouse) were provided by Postgate, who also wrote the stories. The toys discussed
A Fish Called Selma Weekly" placed the episode eighth on their list of the top 25 "The Simpsons" episodes. IGN named the episode the best of the seventh season, stating that it seemed the "obvious pick". They called the musical the best moment of the episode and "maybe even the whole show". In a later review, IGN's Robert Canning praised Phil Hartman's performance as "simply the best of any guest appearance on "The Simpsons"". He concluded by saying: "Sure, [the episode's] writing is smart and the jokes are funny, but without Phil Hartman as Troy McClure, 'A Fish Called Selma' would only be good.