Guest Stars Belinda Lang as Mrs Clam Sarah Crowden as Miss Thimble David Sterne as Tom Thomas Robert Daws as CC Hector Lowsley Virginia Fiol as Sister Reginald Tina Chiang as Sister Peter Miranda Raison as Ruth Penny Carolyn Pickles as Reverend Mother Adrian Sam Alexander as Lord Matthew Sedgewick Emily Joyce as Lynn Goodwin Rachel Bell as Sister Helena Alistair Toovey as Ronny Panesar
