 The now recurring character Professor Frink makes his first appearance on the show in this episode . Frink was originally written as a mad scientist , but when cast member Hank Azaria ad @-@ libbed a voice for Frink , he did an impression of Jerry Lewis 's The Nutty Professor character , and the writing staff started making Frink more of a parody of Lewis . Frink was named after The Simpsons writer John Frink ; however , that was before he became a writer for the show . The episode features a guest appearance from American actress Audrey Meadows as Bea . Al Jean , a writer on the show , said Meadows was perfect for the role because she was very sweet , and the staff had a lot of fun during the recording sessions with her . This is the only episode to date where the closing credits actually states which characters each actor voices . This was done because the staff often received questions from fans regarding what characters each voice actor provided the voice for . 
