Season 1

The first season of Gravity Falls officially premiered on June 29, 2012, but the first episode aired as a sneak peek on June 15, 2012. The first episode was then available for free download on iTunes. This season will consist of 21 episodes. Twin brother and sister Dipper and Mabel Pines are in for an unexpected adventure when they spend the summer with their great uncle in the mysterious town of Gravity Falls, Oregon. Upon their arrival, Dipper and Mabel's huckster great uncle, also known as Grunkle Stan, enlists the siblings' to work at the The Mystery Shack, a "fun" tourist trap he owns that overcharges unsuspecting customers, with no pay. Although Dipper and Mabel quickly discover The Mystery Shack itself is a hoax, they sense there is something strange about their new town and together they begin to unlock the secrets of Gravity Falls.

Main cast

 * Jason Ritter as Dipper Pines
 * Kristen Schaal as Mabel Pines
 * Alex Hirsch as Grunkle Stan/Soos
 * Linda Cardellini as Wendy

Recurring cast

 * Will Forte as Tyler the Cute Biker
 * Stephen Root as Bud
 * Gregg Turkington as Toby Determined
 * Jackie Buscarino - Pacifica Northwest
 * Kevin Michael Richardson as Sheriff Blubs
 * Keith Ferguson as Deputy Durland
 * Thurop Van Orman as 'Lil Gideon
 * John DiMaggio as Manly Dan
 * Dee Bradley Baker as Waddles

Guest Stars

 * Coolio as Wax Coolio
 * Larry King as Wax Larry
 * John Oliver as Sherlock Holmes
 * Alfred Molina as Multi-Bear

Production
The series, created, directed and executive-produced by 2007 California Institute of the Arts (CalArts) graduate Alex Hirsch (Fish Hooks, The Marvelous Misadventures of Flapjack), is a production of Disney Television Animation. Set in the Pacific Northwest woods of Oregon, the animated series features supernatural elements of adventure and mystery, inspired by the real-life summer trips shared by Hirsch and his twin sister while visiting relatives as kids.