Ambiguously Brown: Has olive skin, but also freckles and brunette hair. Though considering her Latina voice actress (America Ferrera) also has freckles, it's doesn't mean she's not supposed to be Latina.
Breakout Character: Despite being just a standard recurring member of Tink's friends in the films along with the other girls, she's getting her own starring role in The Legend of the Neverbeast, and a new celebrity voice actor in Ginnifer Goodwin.
Baleful Polymorph: Rani is transformed into a bat by mermaid song in the second book, with her consciousness trapped inside. By the end, the bat agrees to trade places with her, becoming a kind of Greek Chorus in her mind.
Southern Belle: In the films and the shorts, she's voiced with a Southern accent.
Terrified of Germs: Ironic, since she's a garden fairy. In The Great Fairy Rescue, she takes off her shoes to cross the muddy waters, and complains about getting mud on her bare feet. She nearly ruins the team's chances in The Pixie Hollow Games by refusing to get dirty. Extra ironic when she becomes an animal fairy in The Pirate Fairy, with bugs lining up around her, much to her horror.
Insufferable Genius: Offers advice to other garden-talent fairies, whether they want it or not.
Alchemy: The main conflict of The Pirate Fairy kicks off when Zarina creates different kinds of pixie dust related to various fairy talents, using a speck of blue pixie dust as a base. She even refers to it as alchemy at the end of the movie.
Non-Standard Character Design: Her face and eyes look a little more naturalistic than the rest of the Fairies, and her outfit is MUCH more complex and detailed. She looks like a character from another series transplanted into Pixie Hollow. Opposite of the more simplistic Tinker Bell.
Pint-Sized Powerhouse: Most regular Fairies are only moderately stronger than you'd expect a five-inch tall person to be — it took four of them to carry a block of ice that's about six inches on each side. Zarina on the other hand successfully engages in a swordfight with a human being, and even pushes him back after blocking his sword-thrust with a blade the size of a sewing needle!
Dark Is Not Evil: Vidia occasionally does the decent thing and she seems to have a soft spot for Prilla in the books. She's also not willing to see Tinker Bell killed and pinned to a board in The Great Fairy Rescue, despite being frequently annoyed by her.
Demoted to Extra: The antagonist of the first film, but has no speaking lines in the second. A major character again by the third, but just "part of the cast" in the next couple (albeit with the most lines of the non-Tink cast in The Pirate Fairy).
Heel-Face Turn: In the first Tinker Bell, she and Tinker Bell are enemies. In Tinker Bell and the Great Fairy Rescue, she develops a change of heart and becomes friends with Tink and the other fairies. She's still snarky and crabby like before, but is also willing to laugh with the others and even engages in group hugs.
Irony: Winds up as a tinker fairy during the switched talents subplot of The Pirate Fairy. She does not take this well.
Jerk with a Heart of Gold: An egotistical, vain sort of fairy, but is horrified when Tinker Bell is captured by humans and looks about to be victimized like a pinned butterfly collection.
Loners Are Freaks: The supporting material includes a lot of commentary about the other fairies not wanting to be around her because she's so grouchy and snarky.
Super Speed: In Fairy Haven and the Quest for the Wand, Vidia wishes to be able to fly as fast as she wants for as long as she wants. Although she has fun at first, she soon realizes there's no longer any challenge in flying and grows bored with flying altogether.
Star-Crossed Lovers/The Not-Love Interest: Periwinkle and Tinker Bell's relationship is even compared to an actual pair of star crossed lovers despite the two being sisters. Though, the actual starcrossed lovers in Secret of the Wings were Milori and Queen Clarion.
Genki Girl: Even moreso than Periwinkle; she seems to be on constant sugar high.
The Woman Wearing the Queenly Mask: In The Secret of the Wings. She was the one who made the rule of the border and feels terrible about it since it keeps her apart from Milori but it was necessary since crossing the border is dangerous.
Proper Lady: Just try and find a flaw in her propriety. Well, aside from the bit at the end of Secret of the Wings (jokingly chided by Fairy Mary).
Big Damn Heroes: At the end of Secret of the Wings, Milori comes to save the day with his squadron of owls.
Nice Job Breaking It, Hero: His pushing the snow machine into the river and the machine getting stuck making endless snow was what caused a freeze that threatened destroying the Dust Tree.
Reasonable Authority Figure: One of the heartbreaking things about Secret of the Wings is that Milori is completely right about it being dangerous for winter and warm fairies to cross the border. It is later revealed that he was the fairy whose wing was broken when he crossed the border.