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 Cliff Parisi Fred Guest Star Jamie Thomas King Douglas Roberts Guest Star Max Macmillan Timothy Turner Guest Star Laura Main Sister Bernadette Guest Star Stephen McGann Dr. Turner Guest Star Dorothy Atkinson Jane Sutton Guest Star Jennifer Aries Joyce Guest Star Leanne Rowe Ruby Roberts Guest Star Jason Watkins Rev. Applebee-Thornton Guest Star Roger Goldby Director Mark Catley Writer