Mariposa is a brave, smart, calm, daring, kind hearted, humble and the shyest butterfly fairy with a taste for adventure. Mariposa never felt accepted and always thought she was different. Also she loves to read the books more than everything.In Barbie Mariposa & The Fairy Princess she goes to Shimmervale to meet Princess Catania the crystal fairy princess.But an evil fairy named Gwyllion tries to steal all the crystals Mariposa & Catania has to work together to save the day its about friendship and trust.

Barbie's full name is Barbara Millicent Roberts. Her Birthday is March 9, 1959. It was also the date the Barbie doll made its debut at the American International Toy Fair in New York. In a series of novels published by Random House in the 1960s, her parents' names are given as George and Margaret Roberts from the fictional town of Willows, Wisconsin. In the Random House novels, Barbie attended Willows High School, while in the Generation Girl books, published by Golden Books in 1999, she attended the fictional Manhattan International High School in New York City (based on the real-life Stuyvesant High School).

She has an on-off romantic relationship with her boyfriend Ken (Ken Carson), who first appeared in 1961. A news release from Mattel in February 2004 announced that Barbie and Ken had decided to split up, but in February 2006 they were hoping to rekindle their relationship after Ken had a makeover. Barbie has had over 40 pets including cats and dogs, horses, a panda, a lion cub, and a zebra. She has owned a wide range of vehicles, including pink Corvette convertibles, trailers, and jeeps. She also holds a pilot's license, and operates commercial airliners in...

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.