Princess Hadley is a major character in the 2006 film Barbie in the 12 Dancing Princesses. She and her twin often practice their balance on huge walking sticks. Hadley and Isla also finish each other's sentences, showing how much close and in sync they are with each other.
She is also voiced by Ashleigh Ball, who also voices Applejack in My Little Pony: Friendship is Magic.