Original Owner: It's been speculated that this is the face of the Avatar that had tried to kill Koh eight or nine hundred years before. When Koh was telling Aang how one of his previous incarnations had attempted to slay him, he switched to this face in anger. Since Koh survived this attack, the audience is left to assume that Koh stole the previous Avatar's face and showed it to Aang in a show of rage.

 Description: A strong, angry middle-aged male face with narrow eyes and a bald head. It has black, bushy eyebrows, a long handlebar mustache, and a long, thin beard.

 Face History:

 Original Owner: Its possible this face once belonged to an oni, a Japanese demon or ogre. In Japanese folklore, the oni were once benevolent creatures, but Japanese Buddhism came to associate them with evil as the guardians of hell; they also came to be recognized as Shinto spirits (or kami). The ao-oni is the "blue ogre," and the oni are today generally believed to be spirits of the dead, the earth, or of anger. If this is the case, it can be speculated that Koh was able to steal the face of one of these creatures in the Spirit World.

 Description: A dark blue, demonic-looking face with two bottom teeth or tusks protruding upward from its mouth. It has a wide, flat nose and deep-set, blood red eyes that are masked by curving, prominent light-blue eyebrows.

 Face History:

 Original Owner: It's probable that this once belonged to the faceless curly tailed blue nose that Aang saw outside of Koh's tree. It also very closely resembles the real-life face of a male mandrill, an Old World monkey that is closely related to baboons. The only difference is that this monkey's facial fur is white, while the mandrill's fur is generally brownish. This species is native to the tropical rainforests of West Africa.

 Description: A fearsome white baboon face with yellowish eyes. The most distinctive feature is its deeply grooved nose, which is scarlet red in the center and around the nostrils, with dark blue sides lining the bridge. It also has very sharp teeth and four large fangs, two on the top and two on the bottom of its mouth.

 Face History:

 Original Owner: It's not known who once owned this face, except that he was very old when his face was stolen.

 Description: A sullen and weary face of a very old man; his forehead is deeply wrinkled and he has large bags under his eyes. He is bald and has white, excessively long eyebrows that reach down to his cheeks. A thin, white mustache also hangs down past his chin on either side of his mouth.

 Face History:

 Original Owner: It's currently not known whether this was once an actual animal's face or if it came from one of the Spirit World inhabitants. It's also difficult to pinpoint the particular species of owl this face belongs to, though in some ways it does bear a resemblance to certain species of real-life screech owl. link to possible match, but if you don't agree we can leave this speculation out. If Koh was able to startle or otherwise panic this bird, stealing its face would have been very simple.

 Description: An owl's face with beige or light brown feathers and a darker brown hooked mask around its yellow eyes. It has a small, strong beak and must have been a very large owl to have such a big face.

 Face History:

 Original Owner: This is the face of Ummi, the Southern Water Tribe woman who was the wife of Avatar Kuruk, the last waterbending Avatar before Aang.

 Description: A pleasant and beautiful face with soft pink lips and light brown eyes. She also has very long and wavy brown hair.

 Face History: On the day of her wedding to Kuruk, Ummi fell into the spirit pool in the oasis at the Northern Water Tribe City. Once in the Spirit World, the spirit Koh stole her face. Avatar Kuruk tried every year on their anniversary to find Ummi and to slay Koh, but failed. This occurred eight or nine hundred years ago, according to Koh, and is the reason for Koh's current grudge against the Avatar. The vengeful spirit tried to use it against Aang while they were talking in the hopes Aang would show emotion and lose his own face.

 Original Owner: It's likely that the owner of this face was once a Kabuki actor. Japanese Kabuki theater historically uses male actors to play the roles of both women and men, which would explain why the face appears to be genderless. Men coat their faces, necks, and limbs in white paint in order to appear feminine. This type of theater is also notorious for overemphasized movements and exaggerated facial expressions, which would make it very easy for Koh to nab an actor's face.

 Description: A white, androgynous face with gray oval patches around the eyes and blood-red lips. Two dark spots for eye brows are above the eyes.

 Face History:

 Original Owner: This man bares a very close resemblance to Zuko's uncle, Iroh, and it has been speculated that this is the stolen face of Iroh's dead son.

 Description: A very sorrowful, youthful man's face. He appears to be bald and has a very high forehead, with a small, trim brown goatee on his chin that is separated from a mustache and beard lining his jawbone on either side of his face.

 Face History: