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.
Lisa Simpson. Lisa Marie Simpson is a fictional character in the animated television series The Simpsons. She is the middle child and most intelligent of the Simpson family. Voiced by Yeardley Smith, Lisa first appeared on television in The Tracey Ullman Show short Good Night on April 19, 1987. Cartoonist Matt Groening created and designed her while waiting to meet James L. Brooks.