Grunkle Stan

Grunkle Stan is Dipper and Mabel Pines's great-uncle. He runs the Mystery Shack, always trying to trick tourists into buying cheap trinkets.

Personality
Grunkle Stan is sly and cunning, making money off of selling cheap Gravity Falls merchandise at the Mystery Shack. He's also very gruff. Stan has a soft side, but it doesn't usually show.