- The Simpson family consist of the married couple Homer and Marge and their three children Bart, Lisa and Maggie.
- Bart is a ten-year-old troublemaker.
- Lisa is a precocious eight-year-old activist.
- Maggie is a baby who rarely speaks, but comunicates by sucking on a pacifier.
- The family owns a dog, Snowball V, and a cat, Santa's Little Helper.