Sir Stuffington is a teddy bear made by Twig's mother and given to them as a child. He used to be a normal teddy bear, but after crying into him one day, Twig accidentally brought him to life. They are the closest of friends, and Sir Stuffington knows better than anyone else how to calm Twig down and make them happy. He also tries to get them out into the world to make new friends, being the more extroverted one of the duo.