[@gisk] well we could have another antagonist character, or you can ask someone who has two to give a role up. Here’s the list:

Avatar Rosai (played by [@regitnui])
[Mentor Figure] (played by [@pandapolio])
[Love Interest] (played by [@xandrya])
[Comic Relief] (played by [@sassy1085])
[Jerk with a Heart of Gold] (played by [@angelofoctober])
[Chi-Blocker] (played by [@devcon1])

[White Lotus Member] (played by [@collectorofmyst])
[Earthbending Teacher] (played by [@allhollowseve])
[Firebending Teacher] (played by [@neo is delight])
[Airbending Teacher] (played by [@december])
[Waterbending Teacher] (played by [@candlelitcraft])

[Antagonist character] (played by [@xandrya])
[Antagonist character] (played by [@december])