The show revolves around the adventures of Peter Griffin, a bumbling but well-intentioned blue-collar worker. Peter is an Irish-American Catholic with a thick Rhode Island / Eastern Massachusetts accent. His wife Lois, who has a similar accent, is generally a stay-at-home mother and piano teacher, and is a member of the Pewterschmidt family of wealthy socialites. Peter and Lois have three children: teenage daughter Meg, who is frequently the butt of jokes for her unattractiveness and lack of popularity; teenage son Chris, who is overweight, unintelligent and, in many respects, a younger version of his father; and infant son Stewie, a diabolical child with adult mannerisms who speaks fluently with an upper-class English accent and stereotypical arch-villain phrases. Living with the family is Brian, the family dog, who is highly anthropomorphized, walks on two legs, drinks Martinis, and engages in human conversation, though he is still considered a pet in many respects.