And now, finally, we’ve been given our first peek at the hugely anticipated reboot.
Mildred – who first sprung to life in Jill Murphy’s 1980s books – charmed readers with her clumsiness, her ineptitude for magic, and her naughty streak.
But, most of all, we loved the young witch-in-training for her bravery, kindness, impulsiveness, and her adventurous streak.
Who better to play her, then, than Bella Ramsey?
The young actress shot to fame earlier this year as Lyanna Mormont.
As in, yes, this total badass from Game of Thrones.
It’s safe to say that she looks very alarmed by the hubbling and bubbling of her cauldron in the new promo image – and for good reason, too.
Miss Hardbroom (Raquel Cassidy) is no doubt lurking nearby.
And, as readers will know already, the terrifyingly strict form-mistress isn’t a fan of Mildred at all.
Why? Well, because HB has very high standards indeed – something which is made very obvious in the new trailer for The Worst Witch reboot.
Watch it for yourself below:
“The craft is in decline,” says HB, staring out at a sea of potential first formers.
“This school needs strong witches, not little girls who want to play at magic.”
Thankfully, the rest of Mildred’s teachers look to be a little less fearsome; the “worst witch in the school” may find an ally in Miss Cackle (Clare Higgins), Miss Bat (Wendy Craig), Ms Hubble (Nicola Stephenson), and Miss Gullet (Kacey Ainsworth).
And let’s not forget her besties; Meibh Campbell and Tamara Smart are set to play her friends Maud Spellbody and Enid Nightshade.
Jenny Richardson, meanwhile, will take on the role of Mildred’s arch-nemesis, Ethel Hallow.
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Amanda Holden will also be making an appearance in the children’s show; the Britain’s Got Talent judge will be donning a plum cape and hat to play Miss Pentangle – the headmistress of a rival witch academy.
Jill Murphy is very much on board (or should that be ‘on broom’?) with the upcoming TV adaptation of her books.
The talented author told the BBC: “Published 42 years ago, The Worst Witch has been the cornerstone of my career. I illustrate my own books, so I am very protective about them in every way, and I'm delighted to say that this wonderful new production ticks all the boxes.
“There have been a few changes, to nudge the Academy into the 21st century, but die-hard fans needn't worry, Miss Hardbroom is always on hand making sure that 'Standards will NOT be slipping!' Now, when my readers ask if they can visit the school, I can tell them ‘watch the new series of The Worst Witch on CBBC and you'll feel as if you've just flown in through the window!'”
Read more: A Worst Witch reboot is coming to Netflix
The new 10-episode series is set to air on CBBC in January 2017 – and will later be made available to viewers all around the world on Netflix.
And, while it’s aimed at children, we have a feeling that plenty of grown-up fans will be tuning in to watch as well.