samakaphyllis answered:

Thanks for noticing her. I’m not a fan of revealing much beyond what was presented in the episode… (because what is in the series is the story we were able to tell)… but just for you, yes indeed we planned to show more of her. When becoming co-butlers, Matthews and Fredericks needed someone to assist them. Haley Pigeons is Canadian 🇨🇦 and her personality is very no-nonsense and a hard worker—otherwise she wouldn’t be hired. Beyond that she is a mystery. (Remember in season 1’s QPC? They were holding interviews and Chuck and Rose pretended to be candidates? Well Haley Pigeons was hired shortly after that, after a long international interview process.) Also, Matthews and Fredericks remembered Rose’s unique “butler quality” and by the end of the series, they hired Uncle Chuck and Aunt Rose as their Co-butlers’ butler’s co-butlers. And of course, the Chinchilla is hired as the co-butlers’ butler’s co-butlers’ Butler (check its onscreen name tag) - though the Chinchilla would never consent to actually working for anyone. The Chinchilla just likes the sweet suit. And with his triumphant return to Middleburg Manor, Old Man Middleburg is glad to have so much help.