Castellaneta also provided the voice of Squeaky Voiced Teen, whose voice is lifted from actor Richard Crenna's character Walter Denton in the sitcom Our Miss Brooks. Moleman's voice was also provided by Castellaneta. While his driver's license in this episode showed his name as "Ralph Melish," he was later given the name Moleman by Groening, who thought the character looked like a mole. Cultural references The scene with Skinner climbing the bell tower to get a better look of where the sodium tetrasulfate smell is coming from is a reference to the final scene of the 1958 film Vertigo. Moleman's drivers license says his name is Ralph Melish, a reference to the Monty Python sketch "The Adventures of Ralph Melish: Hot Dog and Knickers" from the 1973 album The Monty Python Matching Tie and Handkerchief. While searching for a man worthy of Selma, Homer imagines himself using a computer-enhanced overlay on his vision, similar to characters from the films Westworld, The Terminator and RoboCop. Skinner sings the song "Inchworm" by Danny Kaye as he rings the bell to Patty and Selma's apartment. Skinner carries Patty up the steps of the bell tower as Quasimodo did with Esmeralda in the 1939 film The Hunchback of Notre Dame. Selma sings Lisa a lullaby version of the song "Brandy" by Elliot Lurie. When Patty bids farewell to Skinner, she says, "Goodnight, sweet principal", a reference to "Goodnight, sweet prince" from Hamlet. When Skinner returns to school, he declares that "Tomorrow is another school day!", a reference to the line "Tomorrow is another day!" from the 1939 film Gone with the Wind. During Stanley and Martha Peterson's wedding, their vows include two lines from The Beatles' song "Martha My Dear". Reception In its original broadcast, "Principal Charming" finished thirty-second in the ratings for the week of February 11–17, 1991, with a Nielsen rating of 14.1, equivalent to approximately thirteen million viewing households. It was the highest-rated show on Fox that week. Since airing, the episode has received mostly positive reviews from television critics. The authors of the book I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide, Warren Martyn and Adrian Wood, wrote: "Good fun, with both Patty and Selma gaining a degree of humanity. Bart makes very good use of his new-found freedom as Skinner's pseudo-in-law, much to the annoyance of Groundskeeper Willie, making his first appearance." DVD Movie Guide's