Fiddleford McGucket

(voiced by Alex Hirsch) - The "local kook" of Gravity Falls. Despite his apparent insanity and stereotypical hillbilly demeanor, Old Man McGucket is both a technical mastermind, capable of creating massive, complex animatronics (such as a robotic sea monster or a homicidal robot dinosaur) and a skilled chemist, to the point he was able to create a formula to alter a human's voice. His son works as a ranger at the lake, and the two seem to have a strained relationship, which adds to McGucket's insanity and need for attention. It is revealed "Society of the Blind Eye" that his full name is Fiddleford Hadron McGucket. Some of his backstory is revealed in "Society of the Blind Eye" and "A Tale of Two Stans": he was once a Steve Jobs/Bill Gates-style computer developer in 70s Palo Alto before being called in by Stanford Pines to work on his trans-dimensional portal. Upon accidentally entering the portal and glimpsing the other side, he was so overcome with horror that he invented a machine to allow him to forget the experience. Over time, he founded the Society of the Blind Eye to protect the people of Gravity Falls from the various monsters and anomalies by forcing them to forget their existence. Eventually, his overuse of the machine on his own mind drove him insane. Dipper and Mabel find this machine (along with the memories of the townspeople) and give Fiddleford back his memories, restoring his sanity. In "Weirdmageddon pt. 3: Take Back the Falls", he assists the Pines in saving Ford by transforming the Mystery Shack into a giant robotic mech. He later moves into the Northwest Mansion. Journal 3 reveals he created the Memory Gun after being attacked by a Gremloblin, and created the Society of the Blind Eye to erase bad memories. Being sucked into the portal started his overuse of the Memory Gun and descent into insanity