And besides the principal characters, there was a fantastic and memorable cast of supporting roles like Iroh, Bumi, and Azula. Other than people, the universe they designed was so expansive and comprehensive which the makers used precisely the same universe for his or her spin-off series, The Legend of Korra. https://www.tumblr.com/sustainablemilkcartons/772209019252260864/the-shift-towards-sustainable-packaging-how-gable?source=share