The Wizard

Wikipedia:
The Wizard is the dictator of Oz and primary villain of the story. He originally came to Oz from Earth in a hot air balloon seeking the Grimmerie, but became sidetracked when he discovered he could orchestrate a coup in Oz. It is heavily implied that he fathered Elphaba while her mother was under the influence of the Magical Elixir, which may explain Elphaba's green skin, aversion to water, and ability to occasionally read parts of the Grimmerie, which originated in the Wizard's world. After Elphaba's death and Dorothy's return to the Emerald City, the Wizard hastily leaves Oz for America in another (or the same) hot air balloon, and plans his suicide. After taking the Magical Elixir herself, Elphaba sees visions of the future, in which the Wizard fails to drown himself in the ocean. This is consistent with Baum's books, in which the Wizard later returns to Oz, alive. She also sees a sign in a shop window that says "Irish need not apply", hinting, that much like Elphaba, The Wizard faced prejudice.

Me:
I like this, but I don't think the fact that he is her father should be revealed until the end. He father should be a mystery, but it would be a great ending to have her father revealed as the wizard, further driving the stake into her heart. I like the ending where he leaves and tries to commit suicide, but fails, however this may draw too much sympathy. The wizard is too beloved a character from the Oz story/movie, and so I like the fact that he is a dictator over Oz in this story. It works for me better to have him escape and try to go back to life in the real world with the same prejudice he forced on the Animals. Divine Justice. His fate is up for grabs, however.