Reginald

Reginald and Rosanna are two recurring background characters who are a couple in Gravity Falls.

History
The couple is first seen eating at a picnic table in the beginning of "Tourist Trapped". They are formally introduced when Reginald tries to propose to Rosanna in "The Legend of the Gobblewonker" while the two are "fishing" together. However, he is interrupted by Grunkle Stan, who annoys them with his pessimistic opinions about marriage. They are seen angrily leaving the re-opening of the Gravity Falls Wax Museum in "Headhunters".

In "The Hand That Rocks the Mabel", they are both seen putting money into Stan's "Sack of Mystery", and then later seen walking to the Tent of Telepathy and watching 'Lil Gideon's show, where Rosanna catches Gideon's cape when he throws it to the audience. Only Rosanna is seen in "Irrational Treasure", watching the Pioneer Day ceremony. In "The Time Traveler's Pig", Reginald and Rosanna appear in the background at the Mystery Fair.

In "Fight Fighters, Reginald plays pinball at the Arcade. In "Little Dipper", Reginald can again be seen at the Bud Gleeful's car dealership among several other customers, wanting to buy a junky car.