Fiddleford Hadron McGucket from Gravity Falls, except as the young version from the relativity falls AU. In the Relativity Falls AU, all the adults and kids are swapped (for example, Mabel takes Stan's place and Stan and Ford take the twins' place). In this AU, Fiddleford is the 'local 12 year old mechanic', and young Ford's crush/secret admirer. He is the new kid in Gravity Falls who built the sentient Gobblewonker robot for attention/friends, and ended up befriending young Stan and young Ford.