Harlan Beck is a Lt. Colonel in the United States Air Force. He served under Colonel Jack O'Neill in the Gulf War. In 2003, he was stationed at the 10th Air Base Wing at the Air Force Academy. When he was entering a convenience store, he was recognized by the clone of Jack O'Neill who asked him to buy him beer. He then informed Stargate Command of the encounter. (SG1: "Fragile Balance")