Sedna De Vil is the daughter of Hades and Cruella De Vil, she is the half-sister to Mal and Carlos. She is just like her brother with being kinder than her parents. She possesses powers, unlike Mal she possesses firepower.
Once Upon a Time Verson
Sedna De Vil is the adoptive daughter of Hades and Cruella, yes I know weird mix, anyways. They don't know where she came from, but they both found her just at the Storybrooke sign after the last curse was broken there. She possesses firepower and has purple hair.
