Stanley Pines

Stanley Pines (a.k.a. Gruncle Stan) is an old man, and the founder of the Mystery Shack. He is a family member of the Pines Family

Past
When he was a boy, he and his twin brother Stanford Pines dreamed to sail the ocean and explore new world's. When he was a young adult, his brother Ford wanted to be a famous scientist, Stanley felt jealous, but he accidentally ruined his brothers' science invention. His parents disowned him, and he became homeless. He tried to make money by inventing his own products, but his products weren't very good. Stanley Pines got banned by several states. His brother Stanford send a note at him, so he went to Gravity Falls to help his twin brother to fix a portal that opens the Nightmare Realm, but he felt angry and fight against him and banished him into the Nightmare Realm

After the series ended
After the series ended. Stanley Pines was banned from the United States of America due to his crimes and his troubles. So Stanford Pines and him were forced to move in Canada