Old Man McGucket

Old Man McGucket may seem like a normal, everyday, average Joe Gravity Falls citizen, but he has had many antagonist roles, primarly in the episode Legend of the Gobbelwonker. He might also be considered mentally ill by making up words, leading to neologism. He also caused havoc with mechanical creations, this and him making elixirs leads to believe that he's a genius.

Its revealed in "The Society of the Blind Eye" that when he was a young man, he was a scientist who worked with the Journal's author to catelog his studies and helpped build his machine, however tortured by what he had seen, he built a special device to erase his memories. He also founded the Blind Eye Society, a secret society to help people like him forget. However his overuse of the machine, drove him insane, leaving him with no memories before 1982. Without him the order fell into a cult, that dogmatically held all memories of the supernatural must be erased reguardless of whether the person in questioned wanted them gone or not.

Acts of villainy

 * Making the Gobblewonker just to get attention.
 * Almost risking Mabel, Soos, and Dipper's lives with Gobblewonker.
 * Destroyed half the town with an 80 ton 'shame bot' because a friend of his didn't come to his retirement party.
 * Making a homocidal pterodactyl because his wife left him.
 * Deliberately scaring little children.
 * Trying to eat Soos who was in Waddles the pig's body, after he got his body back, he still tried to eat him.
 * Building a giant Gideon robot for 'Lil Gideon.