Mabel Pines is the slightly younger twin sister of Dipper Pines and one of the main characters of the IG-88's Adventures Series. Energetic and optimistic, Mabel makes the best of every situation with a big goofy smile, while at the same time annoying her brother Dipper. She is best friends with Candy Chiu, Grenda, IG-88, and Pinkie Pie, and is the girlfriend of Max (Pokemon). She is voiced by Kristen Schaal.