Guest Stars Jennifer Wigmore as Miss Grayling Beth Bradfield as Jean Dunlop Imogen Lamb as Mary-Lou Linnett Natasha Raphael as Irene Edwards Minti Gorne as Felicity Rivers Ashley McGuire as Matron Genevieve Beaudet as Mam'zelle Rougier Twinkle Jaiswal as Katherine Saskia Kemkers as Emily Lake Imali Perera as Miss Potts Hannah Saxby as Pamela Flora Dawson as Mrs Rivers Naomi Sheldon as Mrs Lacey Rob Carter as Mr Rivers
