She is Princess Daisy, but a past version of herself from the old days! She comes and invades Daisy's current reality, making her the main villain in the story.  You can be creative with her voice, but i'd say keep it somewhat similar to Daisy (medium sounding voice) but maybe slightly unhinged! I'd love if you could capture for lack of a better phrase evil vibes in her voice! Feel free to add on to these lines in any way you want :-)