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 Laura Main Sister Bernadette Guest Star Cliff Parisi Fred Guest Star Lisa Diveney Julia Masterson Guest Star Hermione Gulliford Mrs. Flynn Guest Star Raewyn Lippert Mrs. Tate Guest Star Stephen McGann Dr. Turner Guest Star Craige Els Terry Guest Star Karl Johnson Mr. Masterson Guest Star China Moo-Young Director Jess Williams Writer