Since Rapunzel is probably being added who would be your dream actress to play her?

Apparently were getting Rapunzel soon and i was wondering who you would cast. Personally I know a lot of blonde actresses but I would love to see Evanna Lynch in the role. She was a amazing Luna Lovegood in the Harry potters and I think she's be a great funny and zanny Rapunzel. I doubt the writers would think to cast her or if she'd want to do it but is love it if not Rapunzel another role. Let me know who you'd want and what you thought of my suggestion :)