Mildred Hubble
Mildred Hubble is a major character in "The Worst Witch" children's book series by Jill Murphy. She is the protagonist in all the books. She is friends with Maud Spellbody and Enid Nightshade and has a strong rivalry with Ethel Hallow and Drusilla Paddock.
Glinda the Good Witch
Glinda is the Good Witch of the South and is played by Miss Piggy, as are her sisters the Good Witch of the North and the two Wicked Witches. In keeping with the traditions of Muppet films, she is attracted to the Scarecrow (played by Kermit the Frog). She is portrayed in a lavender dress with a feather boa, an archetypal Hollywood starlet much more in keeping with the character of Miss Piggy rather than Glinda. Miss Piggy's other role is herself. Prior to Dorothy's journey, she appears with Kermit and tries to get rid of Dorothy. After Dorothy's journey, she returns for the Muppets' show.