Jessica Raine Jenny Lee Actor Jenny Agutter Sister Julienne Actor Pam Ferris Sister Evangelina Actor Judy Parfitt Sister Monica Joan Actor Helen George Trixie Franklin Actor Bryony Hannah Cynthia Miller Actor Miranda Hart Chummy Browne Actor Vanessa Redgrave Mature Jenny (voice) Guest Star Hannah Edwards Joan Rickart Guest Star Cliff Parisi Fred Buckle Guest Star Rachel Clarke Mrs. Wiggs Guest Star Gemma Salter Merle Vickers Guest Star Ben Caplan PC Peter Noakes Guest Star Victoria Yeates Sister Winifred Guest Star Laura Main Shelagh Turner Guest Star Thea Sharrock Director Hugh Warren Producer Heidi Thomas Writer