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 Vanessa Redgrave Mature Jenny (voice) Guest Star Laura Main Sister Bernadette Guest Star Ben Caplan PC Peter Noakes Guest Star Stephen McGann Dr. Turner Guest Star Miranda Hart Chummy Browne Guest Star Tina O'Brien Cathy Powell Guest Star Elizabeth Webster Mrs. Foster Guest Star Jamie Payne Director Heidi Thomas Writer