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 Witcher
Geralt of Rivia (), known also as "Gwynnbleid" (Elder Speech: "White Wolf") and the Butcher of Blaviken, is the protagonist of the series and its adaptations. A witcher, he travels the Continent and makes a living hunting monsters that plague the land. Péter Apor argues that he embodies the "neo-liberal anti-politics" spirit of the Polish popular culture of the 1990s.