- "Whatever you need General. You've got a blank check."
- — William Cullen discussing with General Shepherd during the events of "Second Sun"
William Cullen (called SecDef in the subtitles) was the Secretary of Defense of the United States in 2016. He appeared in Call of Duty: Modern Warfare 2.
Call of Duty: Modern Warfare 2
William Cullen 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 to capture Makarov.
- Newspaper in "Loose Ends" reveals his name and position.