As Naveen says, Facilier is indeed suave, smooth-talking and often charming, but also cruel, remorseless and sadistic. A charismatic performer as Naveen acknowledges, Facilier is a smooth-talker of drama and showmanship. A glutton for power, Facilier controlling and vindictive, doing whatever he can to get what he wants. Like other Disney villains, he is highly Machiavellian as shown by his manipulation of Naveen, Lawrence, and later Tiana into helping them under false pretenses. Unlike most Disney Villains such as McLeach and Frollo, Facilier does not underestimate the powers of nature, and like Mama Odie, he also knows that animals can talk and that they have minds just like humans. As shown when Ray the firefly tries to take the villainous voodoo doctor's talisman away from him, Facilier seems to have understood his intentions, and tried to cease them. Also knowing that Ray's bioluminescent abdomen can destroy his voodoo shadow demons, Facilier, without hesitation, swats and crushes the firefly, ending Ray's interference.
Despite this complete lack of morals and a treacherous nature, Facilier's motivations are hinted at briefly. Facilier frequently sympathizes with the downtrodden or poor, implying that his own past may have been similar to Lawrence and Tiana.
In Ultima, Dr. Facilier has been revived from the Other Side by Maleficent to join the Organization. He's currently a member of the Sorcerers Society due to his newly gained powerful magic from the Mistress of All Evil.