Denver and Dakota Terrace are a brother and sister pair of thieves who join the Graves Gang. Denver is a gray fox with blue eyes and Dakota is an arctic fox with blue eyes.
Denver and Dakota were put into an orphanage as newborns by their parents. They ran away and became thieves. They attempted to rob Jenni Graves but were caught. Instead of shooting them, Jenni hires them onto her team.
Both Denver and Dakota sport sassy and prideful personalities, as seen when they talk down to Mordecai in their first meeting. Ultimately, their attitudes cause in-fighting between the two, showing that their relationship isn't perfect. Though they are seen to always be together and often are seen holding hands and smiling at each other which shows that despite them having fights they are still very close. There seems to be a noticeable difference in their personalities, with Dakota having a more energetic and bubbly personality as she is often seen smiling or laughing, while Denver has a more cool and measured personality.
Trivia:
Denver and Dakota are the only pair of siblings on the Graves Gang.
Mordecai states Denver and Dakota are not twins as they are not identical.