Tenzin (丹增, Dān Zēng) is a major character in Nickelodeon's animated television series The Legend of Korra, which aired from 2012 to 2014. The character and the series, a sequel to Avatar: The Last Airbender, were created by Michael Dante DiMartino and Bryan Konietzko. He is voiced by J. K. Simmons. Tenzin's father, Aang, was the Avatar who preceded Korra and kept world peace by preventing the Fire Nation from taking over the world during the Hundred Year War, which occurred about seventy years before the beginning of The Legend of Korra. Tenzin’s mother, Katara, greatly assisted Aang in his efforts to save the Earth Kingdom from destruction. Tenzin is the youngest of the three children of Aang and Katara.