Diana Rigg as Constance Hardbroom

Charlotte Rae as Miss Cackle / Agatha

Tim Curry as The Grand Wizard

Fairuza Balk as Mildred Hubble

Sabina Franklyn as Miss Spellbinder

Su Elliot as Delilah

Danielle Batchelor as Maud Warlock

Anna Kipling as Ethel Hallow

Kate Buckley as Donna

Leila Marr as Pixie Brown

Liz May Brice as Zoe Chant-Vestry

Katrina Heath as Sophie Hattrick

Tara Stevenson as Gloria Hobgoblin

Laura Heath as Misty Meadow

Sophie Cook as Natalie Sinister

Sophie Millett as Verity Sinister

Julia Nagle as Bubble Toil

Kathryn Lacey as Goodie Twocharm

Nevena Kaley as Dawn Undercover

Caroline Woolf as Julie Vanishing

Amy Shindler as Spinner Webb

Pui Fan Lee as Prefect