Isabelle is a dog in the Animal Crossing series who first appeared in Animal Crossing: New Leaf, where she helps the player with their duties as mayor. She would later appear in Animal Crossing: New Horizons, playing a similar, but smaller role as the head of the Civic Consultation Counter at the Resident Services building. She has a younger twin brother named Digby who runs the Happy Home Showcase. Since her introduction in Animal Crossing: New Leaf, Isabelle has become a mascot for the Animal Crossing series along with Tom Nook, appearing in all subsequent games and becoming the fictional head of the official Animal Crossing Twitter account though she would be temporarily replaced by Tom Nook to promote New Horizons until the month of July. Additionally, she is featured in many pieces of non-Animal Crossing media, including cameos in various games and playable roles in Mario Kart 8 and Super Smash Bros. Ultimate.