Avatar: The Last Airbender was co-created and produced by Michael Dante DiMartino and Bryan Konietzko at Nickelodeon Animation Studios in Burbank, California. Its animation was mostly done by South Korean studios JM Animation, DR Movie, and MOI Animation. According to Konietzko, the series was conceived in early 2001 when he took an old sketch of a balding, middle-aged man and imagined the man as a child.