Soos is based on Jesus Chambrot, a college friend of series creator Alex Hirsch.
Mabel’s fantastic sweaters are also rooted in real life.
Dipper and Mabel are loosely based on Alex and his twin sister, Ariel.
There's a link between the name “Dipper” and acne.
Gravity Falls itself was inspired by Boring, Oregon.
Grunkle Stan may seem too good to be true, but he is based on Alex Hirsch’s grandpa—gold chain and all!
. Jason Ritter almost got replaced.
Kristen Schaal was the first choice for Mabel.