Santa's Little Helper is the name of Bart Simpson's dog. The brown greyhound is the central focus of the first episode of the TV series "The Simpsons." This loyal family dog is beloved and plays a role in many episodes.
In the premiere episode of the long-running animated TV series, entitled "Simpsons Roasting on an Open Fire," Homer Simpson loses his Christmas gift money gambling on Santa's Little Helper winning a dog race. The dog finishes in last place, but Homer's son, Bart, expresses a fondness for the dog. Homer decides to adopt Santa's Little Helper, making him the Christmas gift for the family.
Subsequent story lines involving the dog generally involve his relationship with Bart.