Season Two (Book 2: Earth) of "", an American animated television series on Nickelodeon, first showed its 20 episodes from 17 March 2006 to 1 December 2006. The season was created and produced by Michael Dante DiMartino and Bryan Konietzko and starred Zach Tyler Eisen, Mae Whitman, Jack DeSena, Jessie Flower, Mako, Grey DeLisle, and Dante Basco as the main character voices.