Mabel Pines

Mabel Pines is the twin sister of Dipper Pines. Energetic and optimistic, Mabel makes the best of every situation, with a big goofy smile, while at the same time annoying her twin brother, Dipper.

Personality
Mabel Pines is a buoyant and energetic optimist who skips through life with a braces-filled smile and an assortment of extremely colorful knit sweaters. It is her outgoing personality and fearless curiosity that comes in handy when Dipper needs help solving a mystery, even if she isn't always aware of it. Mabel lives in a world of pre-teen novels (most about vampires), and her fixation on finding her one true love occasionally lands her in sticky situations which ultimately require her brother's help. Still, despite the weirdness in Gravity Falls, Mabel is always a "glass half full" kind of girl.

Arrival in Gravity Falls
Sometime during the month of June, Mabel and her twin brother Dipper were sent from Piedmont, California to the town of Gravity Falls, Oregon to visit their Great Uncle Stan. Mabel believes it is her chance to have an epic summer romance. She shows her boy obsession when she agrees to date a very mysterious creature, who is disguising himself as a teenage boy.

Adventures
Mabel also goes fishing with Grunkle Stan and Dipper as a family bonding day. When she hears that there is a lake monster in the sea named The Gobblewonker, she and Dipper want to go find it and get the proof. Mabel wants to discover it so she can buy a giant hamster ball to roll in. They ditch Grunkle Stan and go with Soos to find the monster. In the end, the Gobblewonker turns out to just be an old man looking for attention. Feeling bad, Mabel and Dipper go back to Grunkle Stan to have their family bonding day.

When Mabel and her brother discover Grunkle Stan's old wax figure museum, Mabel creates her own statue of Grunkle Stan. When the opening ceremony turns sour and Wax Stan is found "decapitated" Mabel and Dipper search for the murderer. Failing to do so they attend Wax Stan's funeral, attended by Soos and the other wax figures, only to realize the murderer wasn't human at all. They fight off the murderous wax figures. Mabel throws their remains in the fire while Dipper deals with Wax Sherlock Holmes.

Abilities
Mabel's abilities include animal calls and knitting skills. She designs her own sweaters and is also a skilled wax sculptor.

Physical Appearance
Mabel is a short twelve year girl. Her cheeks are round and her eyes are black. Her nose is much smaller and rounder than Dipper's is. She has long brown hair and is usually seen wearing a headband. She also wears braces. Mabel's apparel varies. Creator Alex Hirsch stated in an interview that Mabel will have a different sweater every episode. Her most common outfit is a pink sweater with a rainbow shooting star on it and a purple skirt with black shoes and white socks. She is only seen wearing sweaters with the acceptation of her nightshirt. Click here to see some of Mabel's sweaters.

Trivia

 * Creator Alex Hirsch has said that Mabel is based on his twin sister, Ariel Hirsch. His sister often wore very silly, vibrant, goofy sweaters, so he made sure Mabel had a different sweater in every episode.