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
Triumph Acclaim front seat head restraints and optional air conditioning. The car remained largely the same throughout its production life. A Mark 2 version of the Acclaim came out in 1983 (from VI No. 180415 onwards). The main changes were to the exterior door handles, an electronic digital clock replaced the previous mechanical one, a restyled steering wheel, a restyled gear knob, the rear interior door handles (they were just swapped) and the heater recirculation control, which was moved. Mark 2 HL and HLS cars were better equipped than the earlier ones. There was a limited-edition Avon Acclaim, getting its name from