| Carol Hathaway, MSN, RN | |
|---|---|
 Julianna Margulies as Carol Hathaway | |
| First appearance | September 19, 1994 (1x01, "24 Hours") |
| Last appearance | March 12, 2009 (15x19, "Old Times") |
| Portrayed by | Julianna Margulies |
| Duration | 1994–2000, 2009 |
| In-universe information | |
| Gender | Female |
| Title | Nurse Manager (1994–2000), Transplant Coordinator (2009) |
| Occupation | Registered Nurse and Charge Nurse |
| Family | Helen Hathaway (mother) Unnamed father (deceased) Unnamed Sisters |
| Spouse | Doug Ross (husband) |
| Children | Tess and Kate Ross (daughters with Doug, born on November 25, 1999) |
| Born | May 8, 1967 |
| Religion | Eastern Orthodoxy |
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.