Alex Hirsch based most of the main characters off of important people in his life. Dipper is based off himself, Mabel is based off his sister, Ariel, Grunkle Stan is based of Uncle Stan, and Soos is based off Alex's college partner! Alex Hirsch also ends up voicing a bunch of characters in the show like: Grunkle Stan, Soos, Old Man McGucket, Bill Cipher, Jeff the Gnome, Quinton Trembly, and Sev'ral Timez.
Gravity Falls is an award winning kid's television series. It's a show about two twins, Dipper and Mabel, staying at their Great Uncle Stan's shack in Gravity Falls, Oregon for the summer. In the woods they discover that Gravity Falls is not what it seems. It contains Monsters, Gnomes, Zombies, and 3 mysterious journals that, if combined, can create enough ultimate power to destroy the world!!!