Jafar in KH
Jafaris the royal vizier of Agrabah. He is unprincipled and ruthless in pursuit of his aims. He used the Heartless and Genie to try to take over the kingdom. However, he used his final wish to become "an all-powerful genie". Though he was sealed as a result of his power-lust, he managed to return to wreak havoc in Kingdom Hearts II until he was finally defeated.