Prior to Aang's arrival in the Spirit World in search of Koh, a curly-tailed blue nose lost its face to the face stealer. Upon arriving, Aang heard this creature as it sat outside Koh's lair and was shocked to see that it was missing its face. After entering Koh's lair, Aang soon found out that Koh had stolen the creature's face and added it to his collection.
The curly-tailed blue nose has long, sharp fangs, and yellow, beady eyes. It has an elongated muzzle with distinctive characteristics such as a red stripe down the middle and protruding blue ridges on the sides. Although the rest of the body is coated with brown fur, its face is covered with white fur. Its exceptionally long tail is always curled, hence its name.
- Although its name suggests that its nose would be blue, it is in fact red, much like the nose of the mandrill.
- This creature strongly resembles real-world primates, particularly the mandrill.