The oft-mentioned Mrs. Sonja Barker-Finch, who lives across the street from Hyacinth (and is loathed by her for her apparent higher social standing), is finally seen in this episode. However, in every shot she is walking/talking with another woman, and it is never specified as to which one she actually is (both actresses are also uncredited). Given the domineering attitude of the lady in the tweed suit with brooch and shorter, blonde hair (the other wears glasses), and her reaction when seeing Hyacinth on the truck and the way the camera appears to focus on her more than her companion, it is safe to assume that this is Mrs. Barker-Finch and the second lady is an acquaintance.