A former art history enthusiast-turned-actress, Julianna Margulies cut her teeth on the New York theater scene before catapulting to stardom and critical acclaim as the capable, but conflicted nurse Carol Hathaway on the hit medical series, “ER” (NBC, 1994- ). Originally, her character was supposed to be killed off by a drug overdose in the pilot episode, but the actress proved herself to be likeable, first to producers; then the audience once the series began airing its first season. She was, however, often left out of the spotlight, particularly during the publicity for the show, but