And while the cause of most of these sleep remnants is fairly obvious, the reason behind those sometimes-sticky, sometimes-crusty gobs of crud that can dot the lashes or cling to the corners of the eye is less clear.
Santa's Little Helper's initial appearance on The Simpsons was in the first episode of the series, Simpsons Roasting on an Open Fire, which aired on Dec. 17, 1989. Since then, he has become a recurring character.
Trivia. 1  Bart seems to love him so much, fans often say Bart is his owner. Besides Homer and Marge, Bart and Santa's Little Helper have the best relationship out of the series. 2  Santa's Little Helper and Homer share several characteristic traits.