Millie

Millie is a CPU Mii.

Wii Sports Club
In Boxing and Tennis she is unknown. She is only a Baseball team member.

Trivia

 * A possible beta version of Millie appeared in Miiverse promotions. This beta version features lighter brown hair, curved eyebrows, blue eyes with less eyelashes, and a smaller nose and mouth. The favourite color is also pink, contrast to white.
 * In Wii Party U, she is a Standard Mii.