Elphaba – Misunderstood green-skinned girl who becomes known as the Wicked Witch of the West.
Glinda – Bubbly and popular roommate of Elphaba at Shiz University who changed her name from Galinda to Glinda and becomes known as The Good Witch of the North.
Nessarose – Elphaba’s wheelchair-user half sister.
Boq – A Munchkin who is Nessarose’s love-interest, but who falls in love with Glinda
The Wizard of Oz – The corrupted ruler of Oz
Madame Morrible – The headmistress of Shiz University.
Fiyero – A Winkie prince and love interest of both Elphaba and Glinda.
Doctor Dillamond – A talking Goat and professor at Shiz.