In Gravity Falls, Mabel Pines (voiced by Kristen Schaal) is an outgoing, energetic girl whose personality matches her extremely colorful sweaters. She spends her summer vacation at her great-uncle's in Oregon with her twin brother Dipper.
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October 23, 2015 by Amy
Ferb Fletcher (voiced by Thomas Brodie-Sangster) is Phineas’s step-brother from the U.K. They spend their summers together coming up new things to do every day. This usually involves Ferb creating large scale inventions using his engineering skills. Ferb is usually quiet and when he does speak he’s more likely to sing.
November 25, 2013 by Amy
Louise is the youngest of the Belcher family and thrives on conflict and adventure, even if it means endangering herself or her family. She has an odd sense of humor and is fond of slapping people. Though she periodically changes out of her green dress, she’s never seen without her trademark pink bunny hat on.