Guest Stars Zita Sattar as Miss Tapioca Annette Hannah as Mabel Tapioca Billie Boullet as Fenella Feverfew Saoirse Addison as Isabella 'Izzy' Jones Luciana Akpobaro as Azura Moon Clare Higgins as Agatha Cackle Nitin Ganatra as Mr Daisy Sue Vincent as Miss Splinter Madeleine Edmondson as Carmilla Clove