Dwight H. Sullivan is a military officer and lawyer. From 2005 to 2007, he served as the Chief Defense Counsel for the Office of Military Commissions. In 2007, he became a civilian lawyer working for the Air Force doing death penalty defense appellate work. Sullivan is a colonel in the United States Marine Corps Reserve. He is a graduate of the University of Maryland and the University of Virginia School of Law. Prior to his role in defending the Guantanamo Bay detainees he worked with the Maryland office of the American Civil Liberties Union.