The Worst Witch
Mildred "Millie" Hubble is the protagonist of the series. She is a good-hearted, but bungling young witch-in-training, who never seems to get anything right. She is friends with Maud Spellbody and Enid Nightshade and has a strong rivalry with Ethel Hallow. It is Miss Hardbroom, her potions teacher, who calls her "The Worst Witch".
The Worst Witch
Enid is tall, well-built and rather muscular for a girl. She has large limbs and fair hair, usually in one long plait. In the TV series she is small and waiflike with dark hair. She takes an instant liking to Mildred and hopes to become her friend, implying that she is not a judgmental girl. Overall she is friendly and kind-hearted, but sometimes oversteps the mark in her attempt to befriend and help people, and being nice. Aside from Mildred herself, Enid is considered the second worst witch in the Academy, as she too is hopeless when it comes to broomstick riding and magic.