Jilly’s agent, Felicity Blunt, was one of the executive producers of the show and, according to the showrunner and self-proclaimed Jilly Cooper superfan Dominic Treadwell-Collins, was “Jilly’s representative on Earth, like the Pope is for God.”
Article source: https://www.huffingtonpost.co.uk/entry/rivals-season-2-jilly-cooper-involved_uk_6a05978be4b0def65bfc05b1