Santa's Little Helper (born May 12, age 7), also known as No. 8 (his number in the dog race in "Simpsons Roasting on an Open Fire"), Suds McDuff (the name he changed to after becoming Duff Beer's mascot in "Old Yeller-Belly"), and Santa's Stupid Name (Brian Griffin's nickname for him in "The Simpsons Guy"), is the Simpson family's dog. Santa's Little Helper has been with the Simpson's family the whole series instead of dying or simply not making multiple appearances like how other animals in their care have.