Beth is one of Meg Griffin's best friends, along with Patty, Esther, and Ruth, who are seen regularly throughout the series.
In "Fifteen Minutes of Shame", Meg's brother Chris watches her sleep.
In "Blind Ambition", she witnessed Glenn Quagmire save a female department store shopper's life via CPR.
In "Peter's Two Dads", she attended Meg's birthday party, and in "Peter's Daughter" she attended Meg's bachelorette party/bridal shower.
She is voiced by Lisa Wilhoit.