General Hospital star Leslie Charleson passed away last month at 79. She was the longest-running actor on the ABC soap, playing Monica Quartermaine since 1977 when she took over the role. Her death was shared by GH’s executive producer,

Charleson, who appeared in over 2,000 episodes of the long-running soap opera, passed away in January at the age of 79.

A cause of death has been revealed for Leslie Charleson, who played cardiologist Monica Quartermaine on the ABC daytime drama General Hospital.