The Lesser Key of Solomon
In the original Broadway production of the musical, he was played by Joel Grey. In the musical's official souvenir book (of the same name) the Grimmerie is shown to be known on Earth as "The Lesser Key of Solomon the King" – a book of sorcery filled with spells, symbols and invocations for summoning spirits. In the musical it is hinted that the wizard is actually Elphaba's biological father and that he gave Melena the elixer.