Mrs. Barber, the wife of Mr. Barber and the mother of Becky Barber, made her one and only appearence in Dan Vs. The Barber/

Unlike her family, who have starring roles in the episode, Mrs. Barber never speaks, and infact we never see her face. We only know she exists through process of elimination, and the fact we get a behind shot of her when Dan raids their cabin. As such, it can be inferred that she is black, and that she isn't especially involved in her daughters love life or her husbands barber cult.