Lilliputtians

The golfball people are small humanoids who secretly run the Gravity Falls Miniature Golf Course. There are several distinct factions among them, including Swiss and French nationalities, and pirates.

History
Dipper and Mabel Pines first encounter the Swiss variety creatures in "The Golf War" when they break into the golf course after hours to attend Mabel's tournament with Pacifica Northwest. When the people offer Mabel their help, things end up out of her control.

Appearance
Each person has a head resembling a golfball, and a disproportionately small humanoid body. They wear clothing, and some have hair, including the facial variety on some males. Each person has a single color motif, with hues including red, yellow, green, blue, orange, pink and purple.