(Kristen Schaal): Energetic, optimistic, and often focused on "summer romances".
: Alex Hirsch, who based much of the show’s lore on his own childhood experiences and birthdays (represented by the recurring number 618 ). Main Cast : Gravity Falls Season 1
(Jason Ritter): Logical, paranoid, and obsessed with uncovering the town's secrets. (Kristen Schaal): Energetic
Gravity Falls Season 1 establishes the show's mix of supernatural mystery, sibling bonds, and comedy, following 12-year-old twins as they spend the summer in the strange town of Gravity Falls, Oregon. Series Overview & Production on Disney Channel
: Officially premiered on June 29, 2012, on Disney Channel , following a sneak peek of the pilot on June 15. Format : The season consists of 20 episodes .