Patricia Campbell

Patricia Campbell appears as a figure within the world of The Crown's royal household, played by Gemma Whelan, though the specifics of her role and story beats aren't something I can confidently confirm from what's given here.

Without solid, verifiable detail on this particular character's part in The Crown, I don't want to invent traits, relationships or scenes that aren't genuinely known — a confident guess would do a disservice to both the show and Gemma Whelan's actual performance.