|Out of universe information|
General John P. Jumper was the Chief of Staff of the United States Air Force from September 6, 2001 to September 2, 2005. He was one of the people present in the White House during Anubis' attack on Earth. (SG1: "Lost City, Part 2")
Behind the scenesEdit
General Jumper was the current Chief of Staff at the time this episode aired. He is portrayed by himself. It was one of two times the 'genuine article' Chief of Staff was seen (in a role) on SG-1.