Guest Stars Molly Bishop as Jenny Parker Isobel Hawkridge as Alicia Parker Isaac Vincent-Norgate as Henry Parker Elizabeth Berrington as Mrs. Griffiths Tessa Stephens as Alison Heywood Mollie Holder as Phillida Beaufort Kayleigh-Paige Rees as Julia Beaufort Adrian Rawlins as Mr. Heywood Sarah Belcher as Mrs. Heywood