Peter Griffin: The father of the Griffin family. Portrayed as an average American guy, overweight, incompetent. He tries at times to be a good father to his kids and a good husband to his wife Lois, but he is unsuccessful. He drinks more than his fair share of alcohol.
Lois Griffin: Married to Peter. A mother to three children. She is a stay at home mom that routinely hosts piano lessons to make a little money on the side. She is the glue that holds the family together. The main child that she has to look after is actually her husband, Peter.
Meg Griffin: An unattractive teenage girl. Meg was the first born child She holds the title as being the "black sheep" of the family, but at the same time, she is embarrassed by the way that her family acts, like most teenagers are.
Chris Griffin: Chris, the middle child, takes after his father, Peter. He lives an unhealthy lifestyle, is incompetent, fat, and he has no real goals or aspirations for his life.