Millie is a Felis, or cat person that appears in EP6 and onward. She is clever and enthusiastic. She is reckless, often jumping head first into danger. Her philosophy? Cause trouble, ask questions later.
Millie's voice is feminine, medium to high-ish pitch (but not too high pitched). She sounds youthful and pleasant, but can easily adapt a more serious tone. Her voice is slightly raspy as well.

Voice Example: Radical Edward from Cowboy Bebop.