The complete seventh season of the animated sitcom the griffins are an average north american family living in an average north american home in an average north american town the dad peter voice of seth mac farlane is a big tv fan mom lois voice of alex borstein is a former heiress who gave up her riches to marry the man she loves 16 year old meg voice of mila kunis is a drama queen eager to be accepted by her peers 13 year old chris seth green likes his food and has the beginnings