Princess Catania
Princess Catania is the name of the Fairy Princess. She is the princess of Shimmervale, a kingdom in Fairytopia powered by crystals. Catania and Mariposa become friends and save Shimmervale from Gwyllion, who wants to steal all the crystals in the kingdom.

Appearance:
Catania has light blue eyes and blond hair and pale skin. In the teaser trailer, Catania wears a long violet dress and a silver crown with square-shaped pink gems. She also has a white and pink long necklace. Her wings don't seem to be butterfly wings, and they're light blue, pink and white.

Talayla is a crystal fairy from Shimmervale.

Appearance:
Talayla has long pink hair tied in a high ponytail, pale skin and hazel eyes. Her wings are of pink and light blue shades with fuchsia decorations. She wears a short light blue and pink dress with pink gems in the top. Her shoes are pink ballerinas with ribbons.

Gwyllion is the main antagonist in Barbie: Mariposa & the Fairy Princess. She tries to steal the crystals of Shimmervale.