Digby is a brown shih tsu dog character, debuting in Animal Crossing: New Leaf. In this game, he maintains the Happy Home Showcase, which is a plaza where Villagers can meet and visit other Villagers and their homes. He later appears in Happy Home Designer, in which he works at Nook's Homes.
Digby has a twin sister named Isabelle, who works at the mayor's office as an assistant. Lottie appears to have a crush on Digby.
An amiibo figure of Digby exists! For more info about this amiibo, see this page.