Glinda the Good Witch

Glinda the Good Witch is a fictional character created by L. Frank Baum, who was the author and creator of The Wizard of Oz and many of its respective sequels, prequels, and spin-offs.

In Charmed, Piper Halliwell dressed up as Glinda for Halloween. In Destined, Pandora Mitchell dressed up as and was later magically transformed into Glinda.

Novels
Glinda is the beautiful and independent Good Witch of the South who is introduced in Baum's first Oz book titled The Wonderful Wizard of Oz, published in 1900. She appears at the very end of Baum's story in the twenty third chapter of the novel titled Glinda the Good Grants Dorothy's Wish. Glinda lives in the magical Land of Oz. She is the official ruler of Oz's southern quadrant called Quadling Country. Glinda is the most educated and respected sorceress in all of Oz--she is forever Immortal and rumored to be many hundreds, (possibly even thousands) of years old despite her lively personality and youthful appearance.

1939 Movie
In the most successful adaptation of Frank Baum's Wizard of Oz, Glinda is changed to the Good Witch of the North. She protects and is a friend to the Munchkins, and resides in her castle in the Northern quadrants. She is also not related to the Wicked Witch of the South and West, unlike her novel counterpart who is the sister of South and West respectively. She is also much happier and more lively then in the novel, willing to help Dorothy overcome her own fears and guide her to the The Wizard safely. This version of Glinda is also the one most commonly mimicked in modern-day costumes.

2000
Piper dressed up as Glinda the Good Witch of the North, who helped Dorothy in the story for Halloween. Prudence joked about her costume; "Are you a good witch or a bad witch?" which is a quote of Glinda's from the movie. Leo noted that Glinda helped innocents, but Phoebe remarked; "You had the answer all along? That's not help that's mind games."

2032
The demon Ignatius cast a spell on everyone that attended the club, P3, on Halloween. All of the patrons were turned into the costumes they were dressed as. Pandora was transformed into Glinda the Good Witch. As the night progressed, Pandora guarding the door the VIP where she had cast a spell to contain Poison Ivy Bianca and Queen of Hearts Charlotte from hurting the innocent patrons. When the spell was reversed, Pandora transformed back into herself.