White Mage

White Mage is a generic character from the Final Fantasy series of games, appearing in Mario Hoops 3-on-3, which was developed by Square Enix, who also created the Final Fantasy games.

Mario Hoops 3-on-3
The White Mage can be unlocked by getting a Silver Trophy in Rainbow Cup on Normal difficulty. In this game, she was voiced by Deanna Mustard, who also voiced Princess Daisy. There are a few other Final Fantasy characters in this game: Ninja, Black Mage, Moogle, and Cactuar.

The White Mage seen in Mario Hoops 3-on-3 does not cloak her head with her robe's hood, revealing her pink hair and a tiara, a trait not yet seen in Final Fantasy. Like Peach and Daisy, White Mage, who normally wears a long white robe, got an outfit change in Mario Hoops.

Mario Sports Mix
The White Mage, along with the other Final Fantasy characters will be returning in the upcoming title, Mario Sports Mix. She'll maintain the same outfit that she wore in Mario Hoops 3-on-3.

Trivia

 * Psycho Kamek's robe is in the style of White Mage's.
 * The teal gem on her robe makes her vaguely resemble Princess Peach, and her having one eye obscured by her hair makes her vaguely resemble Rosalina.