Stuart began her career in the New York theater. She had small movie roles but was best known for her TV work, which included guest appearances on shows such as CHICAGO HOPE, NYPD BLUE and JUDGING AMY. She received a 1989 Emmy nomination for her role as a piano teacher in THE WONDER YEARS.
Her soap roles included Grace O'Keefe in THE EDGE OF NIGHT, Mrs. Korman in THE YOUNG MARRIEDS, Mrs. Hewitt on PEYTON PLACE and Mrs. Dawson in GENERAL HOSPITAL.
In 1993, she joined THE YOUNG AND THE RESTLESS as Margaret Anderson. William J. Bell, the show's co-creator, cast Stuart after seeing her play a 70-something intern on MURPHY BROWN.