Santa's Little Helper and is the center of the plots of several episodes. During the course of the show, he has fathered litters of puppies, passed obedience school, had surgery for bloat, replaced Duffman as the mascot for Duff Beer, and been trained as a police dog at Springfield's Animal Police Academy. Some of the episodes that focus on Santa's Little Helper have been inspired by popular culture or real experiences that staff members of the show have gone through. Although cartoon animals are often anthropomorphized, Santa's Little Helper generally exhibits canine behavior. Cast member Dan Castellaneta currently provides the dog's sounds on
Simpson Safari going on strike. Presumably and strangely having no ability to shop without bag boys to pack their bags, they are unable to buy more food. When the Simpsons run out of food in their home, the family follows Santa's Little Helper into the attic, where he finds a 30-year-old box of animal crackers. Homer bites into a solid-gold giraffe, which is the winning contest piece for a trip to Africa. The animal cracker company initially refuses to honor the prize because the contest ended a number of years ago. But when Homer is hit in the eye by a sharp