Casey, an American medical drama series from the 1960s. The sequence involving the "Ship of lost souls" was also pitched by Meyer. It was the last part of the episode to be animated, and was completed in one week. The Simpsons staff were split on whether to include the sequence in the episode at all, with series creator Matt Groening being notably hesitant. "I was very worried about that when I saw the script," he said in the DVD commentary for the episode. Meyer was also unsure of the sequence: "You don't see it coming at least," he said, "I don't know if it was totally successful." Scully thought fondly of it, however, calling it "very inspired". The English soldier, the French man, and the Peter Lorre caricature were all portrayed by main cast member Dan Castellaneta, who also plays Homer among other characters in the series. The woman on the ship was voiced by American voice actress Tress MacNeille. Honeybunch, the name of the sea captain's boat, was pitched by Scully's brother Brian Scully. The name came from Scully's father, who used to call his wife Honeybunch as a term of endearment. The title of the episode is a reference to the 1989 Roger Rabbit cartoon Tummy Trouble. In a scene in the episode, the Simpsons, outside the Springfield Retirement Castle, try to turn on their car, while Grampa is slowly walking towards them. The scene parodies the 1968 film Night of the Living Dead, with Grampa acting as a zombie from the film. The robot cowboy chasing the robot dancer around in a circle on the bar's balcony is a reference to a scene in the original Pirates of the Caribbean ride at Disneyland, where the pirates chased women similarly. The design and voice of the tuxedo-wearing man in the "Ship of lost souls" were based on Hungarian actor Peter Lorre. Also, the bride is loosely based on Miss Havisham from Charles Dickens’ novel Great Expectations. The scene of Homer nearly getting hit by a car during his second escape from the hospital is a reference to a scene in the 1959 Alfred Hitchcock film North by Northwest, in which Cary Grant's character is almost hit by an oncoming truck. American actor Larry Hagman is also mentioned in the episode, when Dr. Hibbert says that Hagman took all the kidneys and livers needed for donors, while Homer states