Julianna Margulies is an American actress. After several small television roles, Margulies received wide recognition for her starring role as Carol Hathaway in the NBC medical drama series ER (1994–2009), for which she received a Primetime Emmy Award and six Screen Actors Guild Awards, in addition to four Golden Globe Award nominations. In 2009, she took on the lead role of Alicia Florrick in the CBS legal drama series The Good Wife (2009–2016). Her performance garnered critical acclaim, winning a further two Primetime Emmy Awards, two Screen Actors Guild Awards, a Golden Globe Award, and a Television Critics Association Award.

Carol Hathaway is a fictional character from the NBC medical drama series ER, portrayed by actress Julianna Margulies. She is the nurse manager in the ER. She regularly appeared throughout the series from the pilot episode to her penultimate episode of the show's sixth season. She was mentioned throughout the series and made her final appearance in season fifteen, the show's last season, when she is revealed to have a new career as a transplant coordinator.