Uma is the main antagonist of Descendants 2. She is the daughter of Ursula.
Uma is sassy, manipulative, and ambitious. Though she has a tough exterior, she seems to care deeply for her crew along with other people who are being mistreated on the Isle. She has been shown to be sarcastic sometimes.
Uma is a beautiful girl with brown-skin, and aqua, black-white braids, and sky blue-painted nails. Her primary outfit is an aqua leather top with multicolored bands like a skirt, a purple translucent top, a aqua leather coat with gold details, and multicolored bands on the shoulders, dark aqua pants with zippers, and brown boots with pearls, sea-stars, shells, and her pirate crew's symbolic pin. Her accessories consist of a black pirate hat with brown details, sea-stars, shells and her pirate crew's symbolic pin, black fingerless gloves with sea-stars, pearl bracelets, a sky blue bracelet with spikes, black and brown belts, a black band, and a sheath for her sword.
- China Anne McClain, who portrayed Uma, also provided the voice of Freddie Facilier, daughter of Dr. Facilier, in the animated short series Descendants: Wicked World.
- Like her mother, Uma has the ability to transform into a giant cecaelia.
- It could be this is her true form and is merely disguising herself as human, like her mother did.