Gompers first appears in "Tourist Trapped" standing on Dipper's bed and chewing on Mabel's sweater. In the forest, when Dipper discovers the Journal 3 after he lifts some buttons from a machine in a fake tree, the ground where Gompers eats grass opens, making the goat run away; he later nibbles on the spine of the journal behind Dipper's back. At the end of the episode, he picks up a trapped gnome in his mouth and runs off with him.
Gompers next appears in "Headhunters" outside the Mystery Shack several times during the time of the "murder" of a wax sculpture of Stan. Gompers is also mentioned to be the culprit behind the disappearance of the Pines family's tin cans.
Gompers is seen on the roof of the Mystery Shack in "The Inconveniencing."
In "Boss Mabel," Gompers is seen outside of the Mystery Shack when a bus load of tourists arrive. Gompers is also seen in the end credits of the same episode where Stan is being lazy and dancing at the same time, where the goat attempts to steal Stan's fez, which they have a tug-o-war over.
Gompers is also seen twice in "Carpet Diem," once outside at night, and once in the attic eating leftover pizza.
In "Land Before Swine," Gompers is seen eating grass and looking at Stan drive by, giving a tour of the Mystery Shack grounds.
In "Gideon Rises," Gompers is seen chewing on the fallen "S" of the Mystery Shack's sign.
In "Scary-oke," Gompers appears on the Mystery Shack's roof sign.
When Dipper and Mabel travel ten years before the current day in "Blendin's Game," a young Gompers is seen outside the Mystery Shack.
In "The Love God," it is revealed that Gompers and Waddles have gotten married, thanks to Mabel's matchmaking abilities. As both Gompers and Waddles have been referred to canonically as male, this would make them Gravity Falls' first and only same-sex "married" couple.
In "Not What He Seems," during the first anomaly occurrence, Gompers is seen rising from the ground because of the change in gravity.
In "Weirdmageddon Part 1," Gompers begins to chew on Stan's hat, causing Stan to threaten Gompers off the property until a weirdness wave hits Gompers and turns him gigantic. He then goes off to eat a part of the prison that was holding Gideon Gleeful, freeing the kid and his fellow inmates.
Gompers makes brief appearances in "Weirdmageddon 2: Escape from Reality" as a giant.
Gompers has a dull brown coat, a white stomach, and a dark brown spot on his lower back. He has yellow eyes with horizontal irises. Half of his left horn is missing. He also has a short, pale gray bushy tail and dark brown hooves.
- 101. "Tourist Trapped"
- 103. "Headhunters"
- 105. "The Inconveniencing"
- 108. "Irrational Treasure"
- 113. "Boss Mabel"
- 114. "Bottomless Pit!"
- 116. "Carpet Diem"
- 117. "Boyz Crazy"
- 118. "Land Before Swine"
- 120. "Gideon Rises"
- 10. "Mabel's Guide to Color"
- 201. "Scary-oke"
- 206. "Little Gift Shop of Horrors"
- 208. "Blendin's Game"
- 209. "The Love God"
- 210. "Northwest Mansion Mystery"
- 211. "Not What He Seems"
- 212. "A Tale of Two Stans"
- 213. "Dungeons, Dungeons, and More Dungeons"
- 218. "Weirdmageddon Part 1"
- 219. "Weirdmageddon 2: Escape From Reality" (no lines)
- 220. "Weirdmageddon 3: Take Back The Falls"
- Postcard Creator
- Fright Night
- Rumble's Revenge
- Li'l Gideon Shrinks Back
- Gravity Falls: Legend of the Gnome Gemulets
- Gompers is named after American Federation of Labor leader, Samuel Gompers.
- Bill Cipher says that he likes Gompers "better this way."
- In "Gravity Falls: Legend of the Gnome Gemulets" it is revealed that Gompers is a forest protector.
- Gompers likes the color burgundy.
- A cut scene in "Blendin's Game" reveals that Stan got Gompers when a guy tried to pay for a tour of the Mystery Shack with a baby goat.
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