Stan Pines

Stanley Pines's past is a dramatic story of exile, survival, and crushing guilt.
Growing up in New Jersey, Stan was always more action-oriented than academic, unlike his brilliant twin brother, Ford. An accidental failure of Ford's scientific project ruined his brother's chances of getting into a prestigious university, leading his enraged father to kick Stan out of the house. Years of wandering turned him into a con man: he changed names, created failed fake businesses, evaded the police, and even spent time in prison in various countries.
The turning point came when Ford summoned him to Gravity Falls, but instead of reconciling, he asked him to take the first Journal and leave. The ensuing argument led to tragedy—Ford was sucked into an interdimensional portal. Realizing the scale of the disaster, Stan dedicated 30 years of his life to a single goal: he impersonated his deceased brother, turned his house into a tourist trap, the Mystery Shack, and secretly collected the Journals to bring his twin home.

Stanley Pines (Grunkle Stan) is a charismatic, grouchy, and seemingly cynical con man with a heart of gold.
Behind the guise of a greedy businessman willing to charge tourists for any fake, lies a deeply devoted family man, willing to make any sacrifice for his loved ones. He guarded the secret of his twin brother, Ford, for decades and ultimately risked everything to save the world and his nephews. He is straightforward, stubborn, tempered by a difficult past, and has a cunning streak, but beneath his rough exterior, he hides a genuine affection for Dipper and Mabel.