text: Odenkirk was born in Naperville, Illinois. He is the younger brother of American actor and comedian Bob Odenkirk, and worked as a writer, producer and actor on the HBO sketch comedy TV show Mr. Show with Bob and David, which featured his brother as co-star.  Odenkirk went on to write for Tenacious D, Futurama, and Disenchantment. He has written and executive produced episodes of The Simpsons. He holds a PhD in inorganic chemistry from the University of Chicago.