: 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 :
(Jason Ritter): Logical, paranoid, and obsessed with uncovering the town's secrets. Gravity Falls Season 1
(Kristen Schaal): Energetic, optimistic, and often focused on "summer romances". : Alex Hirsch, who based much of the
: 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 . : Alex Hirsch
(Alex Hirsch): The twins' "con-artist" great-uncle who runs the Mystery Shack , a tourist trap filled with fake oddities. Plot Summary Review: Gravity Falls Season One | A Reckless Venture