Emma Reeves Creator, Writer Bella Ramsey Mildred Hubble Actor Clare Higgins Miss Cackle Actor Nicola Stephenson Julie Hubble Actor Raquel Cassidy Miss Hardbroom Actor Zita Sattar Miss Tapioca Actor Wendy Craig Miss Bat Actor Ynez Williams Beatrice Bunch Actor Tamara Smart Enid Nightshade Actor Jenny Richardson Ethel Hallow Actor Dagny Rollins Felicity Foxglove Actor Shauna Shim Miss Drill Actor Philip Martin Brown Mr Rowan Actor Megan Hughes Maud Spellbody Actor Lydia Page Actor Meibh Campbell Actor Miriam Petche Actor Annette Hannah Mabel Tapioca Actor Mina Anwar Actor Kelsey Calladine-Smith Actor Marcus Wilson Executive Producer Dermot Boyd Director Jill Murphy Writer Maxine Alderton Writer Sarah Courtauld Writer Dirk Campbell Director Neil Jones Writer Kim Moore Producer Lucy Martin Executive Producer Nicole Keeb Executive Producer