1
Carmelita has not kept the same English voice actress for more than one game in the series. As such, her accent keeps changing each game.
1
Tennessee "Kid" Cooper's design has slightly changed throughout the series. In Sly Cooper and the Thievius Raccoonus, he is depicted wearing a long sleeved shirt under his vest. Later Sly games removed the shirt, but it was re-added in Sly Cooper: Thieves in Time.