Cast of ER Cast of ER "ER" is an American drama series that aired on NBC from September 19, 1994 until April 2, 2009. The series featured a large ensemble cast that changed dramatically over its long run. The main cast was augmented by a wealth of recurring characters and award-winning guest stars. The original starring cast consisted of Anthony Edwards as Dr. Mark Greene, George Clooney as Dr. Douglas "Doug" Ross, Sherry Stringfield as Dr. Susan Lewis, Noah Wyle as medical student (later Dr.) John Carter, and Eriq La Salle as Dr. Peter Benton. Julianna Margulies guest starred in the pilot as
Lists of former Guantanamo Bay detainees alleged to have returned to terrorism returned to the battlefield. In a press briefing on March 6, 2007 a "Senior Defense official" commented: I can tell you that we have confirmed 12 individuals have returned to the fight, and we have strong evidence that about another dozen have returned to the fight. On April 2, 2007, JTF-GTMO commander Harry Harris asserted that thirty former captives ""resumed terrorist activities"". On Monday, May 14, 2007, Pentagon officials Joseph Benkert and Jeffrey Gordon repeated the assertion that thirty former captives had returned to the battlefield in testimony before the United States Congress. They identified six of the thirty by