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 new name was Ruslan Odizhev, a Russian who Russian police reported died while resisting arrest on June 27, 2007. On 13 January 2009, the Pentagon said that 18 former detainees are confirmed to have participated in attacks, and 43 are suspected to have been involved in attacks. A spokesman said evidence of someone being "confirmed" could include fingerprints, a conclusive photograph or "well-corroborated intelligence reporting." He said the Pentagon would not discuss how the statistics were derived because of security concerns. National security expert and CNN analyst Peter Bergen, stated that some of those "suspected" to have returned to terrorism