Cindy Wolfe is Heffer's adoptive sister. Usually used as a background character, she speaks in a voice reminiscent of a valley girl. She is a parody of stereotypical teenage girls and their tendency to gravitate towards over-dramatic rebelliousness and unusual fads or phases, such as the time she took a (revealed later to be temporary) vow of silence. She gets upset when she believes that her parents are fighting, adding to George's temper and Virginia's stress. Cindy is voiced by Linda Wallem.


  • To Heck and Back (flashback; silent)
  • Who's For Dinner?
  • Rocko's Modern Christmas
  • Belch of Destiny
  • An Elk for Heffer
  • Zanzibar
  • Mama's Boy
  • Driving Mrs. Wolfe