Gompers

Gompers is a goat who lives near the Mystery Shack. It usually finds its way inside the Mystery Shack, and, at one point, managed to eat all of the household's tin cans.

History
Gompers first appears in "Tourist Trapped" standing on Dipper's bed and chewing on Mabel's sweater. Gompers later nibbles on the spine of Journal 3 in the forest. At the end of the episode, the goat picks up a trapped gnome in his mouth and runs off with him.

The goat next appears in "Headhunters" outside the Mystery Shack several times during the time of the "murder" of a wax sculpture of Stan. She 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."

Gompers watches a wedding ceremony during Pioneer Day in "Irrational Treasure."

In "Boss Mabel," Gompers is seen outside of the Mystery Shack when a bus load of tourists arrive. She 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.

In "Bottomless Pit!," Gompers appears after Dipper, Mabel, Soos, and Stan fall down the bottomless pit, and after they come out.

Gompers is also seen twice in "Carpet Diem," once outside at night, and once in the attic eating leftover pizza.

In "Boyz Crazy," Gompers chews off Ergman Bratsman's license plate, which Soos praises her for; this later gets Bratsman arrested.

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.

She appears for the Season 2 premiere, "Scary-oke," on the Mystery Shack's roof sign.

In "Little Gift Shop of Horrors", she appears in one of Stan's stories. Waddles shoos her away for attempting to eat the pillow on his seat.

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.

Appearance
Gompers has a dull brown coat, a white stomach, and a dark brown spot on her lower back. It has yellow eyes with horizontal irises. Half of Gompers' left horn is missing. She also has a short, pale gray bushy tail and dark brown hooves.

Trivia

 * Gompers is named after American Federation of Labor leader, Samuel Gompers.