Mabel Pines

Mabel Pines is the quirky, spontaneous 12-year-old main protagonist of Gravity Falls. She is played by Horse_and_Pony_Lover_0911.

Appeance
Mabel is twelve years old and short for her age. She is shorter than her brother Dipper, despite being older than him. She has dark honey-colored hair, grey eyes, and pale skin. Her normal outfit consists of a solid colored or patterned skirt, a sweater (see: list of Mabel's Sweaters), a solid colored or patterned headband, white socks, and black ballet flats. She is the only character with a signature outfit that is also an alternate outfit, consisting of a purple skirt, a pink shooting star sweater, a pink headband, and her socks and shoes. Other alternate outfits include a pink feathery ballgown with a pink fascinator hat and pink pumps, a red one-piece bathing suit, and a wisteria-purple tee-shirt nightdress sporting a floppy disk. She is the character with the most outfits.

Dipper Pines
Mabel and Dipper are fraternal twins. She is five minutes older than him, despite that fact that he is several inches taller. They have a very close relationship, and each consider the other to be their best friend. Dipper hates when people (or animals) mess with his sister, and she hates to see him upset or discouraged. Despite this, they are still siblings, and have their fair share of fights- such as when she wants to win back her pig, Waddles, though doing so would cost Dipper his dream timeline with Wendy Corduroy; when she steals a cooler from the pool, costing Dipper his new job; and when she gets angry at Dipper for accepting Ford's apprenticeship because she would have to go back to Piedmont alone. Even so, they continue to have a stable and loving siblinghood, watching out for and even risking their lives for each other.

Stan Pines
Stan and Mabel usually have a good relationship, although if the occasion arises, Mabel will chide her uncle for misbehavior. Stan has been shown to like Mabel more than her brother, most likely due to the fact that Stan and Dipper will butt heads from time to time. Mabel also likes to participate in Stan's mockery of her brother.

Wendy Corduroy
Wendy is the Mystery Shack's extremely cool 15-year-old cashier. She is a bit like an older sister to Mabel, giving her boy advice and often participating in her silly antics. Wendy once told Dipper, "You've just gotta learn to roll with Mabel's craziness. It's what makes life wort living."

Trivia

 * Mabel's actor, Horse_and_Pony_Lover_0911, is in reality the biological sister of Imlikegirldipper2407, who plays Dipper.
 * Unlike in the canon universe (you can view the link to that wiki | here), Mabel is shorter than Dipper and has lighter hair and eyes.
 * According to Dipper, Mabel sings in her sleep.
 * Also according to Dipper, Mabel has a new crush every week, usually on a guy neither of them have ever met.
 * Mabel has a habit of compulsively snapping, a trait given to her by her portrayer.