McGucket first appears in "The Legend of the Gobblewonker," where he tries to discipline his father, the local kook, by spraying water on him. It was revealed that he and Old Man McGucket do not have a close relationship and have drifted apart, causing his father to construct the robotic Gobblewonker to attract attention from him.
He next appears in the short "Tooth." He warns Dipper and Mabel about the bubbles in the lake water and told them if they see it, they needed to run. Dipper questions this warning, but McGucket replies to get their camera out of the building.
The ranger appears to be a fairly young man, with short, brown hair reaching down to the nape of his neck, covered by an olive green baseball cap. He wears his green baseball cap low; so much so as to obscure his eyes from view. He bears little resemblance to his father, the only notable feature they share being a large nose. He wears a fairly simple uniform, consisting of a faded olive green polo shirt with name-tag, a pair of brown pants worn unnecessarily high, held to such height by a black belt with a yellow buckle, and a pair of simple, black shoes with gray toes.
- 102. "The Legend of the Gobblewonker"
- 103. "Headhunters" (no lines)
- 108. "Irrational Treasure" (no lines)
- 109. "The Time Traveler's Pig" (no lines)
- 207. "Society of the Blind Eye" (pictured)
- 5. "Tooth"
"If you see bubbles on that lake, kid, run."
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