William Cullen

William Cullen was a US Goverment official who appeared in Call of Duty: Modern Warfare 2.

Call of Duty: Modern Warfare 2
William Cullen (aka SecDef) was the U.S. Secretary of Defense during the events of Call of Duty: Modern Warfare 2. In the aftermath of the massacre at the Zakhaev International Airport and the discovery of the involvement of an American, he commented that he knows of no U.S. agency cooperating with Vladimir Makarov in any capacity. He is then heard in the cutscene for "Second Sun", speaking to General Shepherd about the EMP that Captain Price launched towards Washington, D.C. He personally grants Shepherd a "blank check" to use any resource available to the United States military.

Trivia

 * The term 'blank check' means that there is no limit to the amount of money that can be spent to achieve the goal.
 * Before the mission "Loose Ends", newspaper articles reveal his name and position as the Secretary of Defense.