The heroes of Avatar: The Last Airbender are memorable in their own right, but when it comes to villains, there's none more iconic than Princess Azula of the Fire Nation. Younger sister to Zuko ...

Azula, Mai and Ty Lee are the main villains ... the ancestor of Firelord Ozai — leading his surprise attack to kill the next Avatar, which he knew would be an airbender. It will be interesting ...