- Emma Caulfield - English
- Kotono Mitsuishi - Japanese
- Christine Bellier - Canadian French
- Marie Vincent - European French
She is shown as a superhero with a golden eagle crown on her head, an American Flag outfit with one star and a cape.
She is known as brave, daring, heroic, courageous, and fearless.
- Wonder Milly to the rescue! (her catchphrase)
Rosemary Hills 5: Operation - Rescue Milly:
- Milly, you're not a party pooper. You're the leader of Rosemary-Land. You... are... my friend! (trying to convince Milly to come home)