The series followed Henrietta "Hettie" Hubble, (Mildred's younger cousin), through her years at Cackles Academy. Mildred is seen in the first episode accompanying her cousin to Cackles, before magically returning home. Hettie quickly becomes friends with Mona Hallow (Ethel's younger sister) and Crescentmoon "Cressie" Winterchild. The new enemy of Cackles is filled by Belladonna Bindweed and the sidekick is filled by Cynthia Horrocks. Miss Hardbroom and Miss Cackle return, and are joined by new members of staff Caspian Bloom, Miss Swoop and Miss Widget/Miss Nightingale.
Stephanie Lane
as Miss Swoop
Paislie Reid
as Crescentmoon 'Cressie' Winterchild
Daisy Hughes
as Cynthia Horrocks
Narisha Lawson
as Dyllis Mustardseed
Clare Coulter
as Miss Cackle
Anabel Barnston
as Mona Hallow
Alice Connor
as Hettie Hubble
Caroline O'Neill
as Constance Hardbroom
Francesca Isherwood
as Belladonna Bindweed
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Episode 13
Episode 14
Episode 15
Episode 16
Episode 17
Episode 18
Episode 19
Episode 20
Episode 21
Episode 22
Episode 23
Episode 24
Episode 25
Episode 26
