Nathan Greno is an American film director, story artist and writer at Walt Disney Animation Studios. He is best known as the co-director of the 2010 animated film Tangled.Inspired by Disney films since the first grade, Greno started as a young boy writing and drawing comic books and strips. In 1996, during his junior year at Columbus College of Art and Design, he was hired by Walt Disney Feature Animation. He started there as an animation cleaner on Mulan.