Leslie Charleson, known for her role as Monica Quartermaine on “General Hospital,” has died. She was 79. Executive producer Frank Valentini announced Charleson’s death Sunday on the show’s Instagram page.

Ms. Charleson played Dr. Monica Quartermaine, a cardiologist and family matriarch, on the daytime series for 46 years.

Leslie Charleson, who played Monica Quartermaine on General Hospital for nearly 50 years, has died. She was 79. Charleson’s death was announced Sunday on the Instagram account of the ABC daytime drama series. The announcement was attributed to General Hospital executive producer Frank Valentini.