Topic summary
Ford Pines

Extracted from the Wikipedia article List of Gravity Falls characters.
Stanley "Stan" Pines
Stanley "Stan" Pines (also known as Grunkle Stan) (voiced by Alex Hirsch as an adult and Declan J. Krogman as a child) is the great-uncle (or "grunkle" for short) of Dipper and Mabel, who is best characterized by his grumpyness, selfishness and abrasiveness. He has been going by the name Stanford Pines, the name of his older twin brother, but his real name is Stanley. He runs and lives in the Mystery Shack; a tourist trap billed as "the world's most bizarre museum". He is primarily a salesman, putting most of his effort into showmanship, and is eager to sell the Shack's knick-knacks, trinkets, and baubles for exorbitant prices in the gift store section. Because of his drive to make money, his methods of obtaining it are not always legal and frequently commits petty crimes, having a laundry list of crimes a mile long. When he's not making money, he is usually at home watching television. Stan usually wears a fez and carries around an 8-ball topped cane; he sometimes wears an eyepatch over his glasses. He frequently sends the twins on what they consider outrageous and unpredictable errands, but is protective and loving towards them. Despite his age, Stan is physically fit to the point of being able to fight back when threatened. Behind his vending machine, he has a hidden staircase to an unknown location, which the season 1 finale reveals contains a large hidden device powered by encrypted information in the three journals. Later, he collects all three after Li'l Gideon's arrest and after Dipper shows him Journal 3, but later returns it to him. "Not What He Seems" reveals he was attempting to retrieve his older twin brother Ford after he was stranded in another dimension. In the series finale, Stan sacrifices his memory to defeat Bill, but regains it after seeing Mabel's scrapbook. He is based on Alex Hirsch's grandfather Stan.