Zarina

Zarina (also known as The Pirate Fairy) is a Disney Fairies character prominently introduced in the film The Pirate Fairy. She is voiced by Christina Hendricks.

Background
Zarina is a curious dust-keeper fairy who is intrigued by blue pixie dust. She wonders at its endless possibilities and many magical properties. Though Fairy Gary told her that it is forbidden to tamper with pixie dust, she mixes in the ingredients that the book "Pixie Dust Experiments" shows, and she finds out it works. When she goes too far, she is no longer accepted as a dust-keeper and she leaves Pixie Hollow. A year later, she steals the blue pixie dust and joins forces with the pirates of Skull Rock, who make her their captain. When Tinker Bell, Silvermist, Iridessa, Rosetta, Fawn, and Vidia all follow to stop her and reclaim the mighty blue pixie dust to its rightful place, she uses mutli-colored pixie dust to magically switch their innate magical talents.

Role in the Movie
She is seen in a film clip experimenting with pixie dust with Tinker Bell. While experimenting, they discover that when mixed, pixie dust can change color and the pixie dust is now infused with the power of a certain talent. For example, when a small amount of blue pixie dust and a purple feather is mixed, the pixie dust turns purple, representing the fast-flying talent. If pink flower petals are added instead, it turns pink and it represents the garden talent.

Also in the trailer after Tinker Bell and the others take back the blue pixie dust from the pirates (because Zarina gives it to them), she takes the experimented pixie dust in different colors representing the different talents and throws it on Tinker Bell, Silvermist, Rosetta, Iridessa, Fawn and Vidia, swapping their talents.

In the 5-minute extended sneak peek, Zarina is seen using her Garden-talent dust to make poppies sprout behind the spectators at the Four Seasons Festival. She then throws dust at the poppies to make them bloom and release pollen, which puts all the fairies in the Fairy Coliseum into a deep sleep. While all the fairies are asleep, Zarina flies into the Pixie Dust Depot and steals the blue pixie dust. The only fairies that were not in the coliseum when Zarina set the poppies off were Tink, Silvermist, Rosetta, Iridessa, Fawn, Vidia and Clank. When Tink and her friends discover that Zarina has stolen the mighty and vital blue pixie dust, they follow the blue light until they reach the coast and see a rowboat of pirates rowing Zarina and the blue fairy dust toward their ship.

Trivia

 * Zarina is the second antagonistic fairy of the Disney Fairies franchise. The first is Vidia, who bullies Tink in Tinker Bell but reforms by the end of Tinker Bell and the Great Fairy Rescue.
 * Zarina is much like Tinker Bell, full of curiosity and ending up in trouble when seeking out her answers. She also goes against the advice of what others say.
 * The same way The Duke of Weselton was thought to be the main antagonist of Frozen, Zarina was also.
 * She is similar to Anna from Frozen:
 * After a seemingly good relationship with James, Zarina was betrayed. He used her only for the pixie dust.
 * She was told by the true antagonist of what his schemes were all along.
 * Both were locked up.
 * After nearly being killed, her true friends saved her.
 * She is also similar to Elsa, Anna's elder sister:
 * Both run away after accidentally causing a disaster.
 * Both are locked up.
 * Both, at the end, are finally accepted and appreciated for who they are.