McGucket first appears in "The Legend of the Gobblewonker," when 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.
The lake ranger next appears in "Headhunters" as one of the people watching the grand re-opening ceremony of the Gravity Falls Wax Museum. McGucket appears in "Irrational Treasure" when he was riding a wagon with Lazy Susan on Pioneer Day. The lake ranger appears in the background a couple of times in "The Time Traveler's Pig," hanging out at the Mystery Fair.
McGucket dons a green cap that covers his eyes. He also has a big nose like his dad. Also like his father, Old Man McGucket, he has pale skin. He wears a stereotypical ranger's outfit with black shoes, and on his shirt he has a name tag. He carries a squirt gun to squirt water at his father. He is also quite chubby.
- 102. "The Legend of the Gobblewonker"
- 103. "Headhunters" (no lines)
- 108. "Irrational Treasure" (no lines)
- 109. "The Time Traveler's Pig" (no lines)