Guest Stars Natasha Raphael as Irene Edwards Beth Bradfield as Jean Dunlop Imogen Lamb as Mary-Lou Linnett 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 Christine Horne as Margaret Lake Rob Carter as Mr Rivers
