- “The world will know my name!”
At some point, Uma was given a sandbox along with a shrimp by Mal, who then nicknamed her Shrimpy. She wanted to join Mal's gang at some point but was told she wasn't big or bad enough.
Despite being cruel and ruthless, Uma does care about her gang as she had an opportunity to attack Mal from behind, but gave it up to help Harry when he asked for her help.
- 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.
- According to Rise of the Isle of the Lost: A Descendants Novel, Uma emits a shrimp odor due to getting dunked with shrimp larva by Mal, earning her the nickname "Shrimpy".
- 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.
- Uma lets slip during the end credits that it's not the end of the story, hinting toward yet another sequel.
- Uma has the ability to use Mal's spell book.