Mal (daughter of Maleficent), Evie (daughter of the Evil Queen), Carlos (son of Cruella de Vil) and Jay (son of Jafar) leave the "Neon Lights Ball," where the Descendants: Wicked World special is set, and a powerful nod to the new character Uma, the daughter of Ursula (played by China Anne McClain), takes over with a sweeping tentacle.