From 2001 to 2006, she regularly appeared on NBC's sitcom "Will & Grace" as Will Truman's mother Marilyn. From 2004 to 2006, she starred in the main cast of the comedy-drama series "Huff". In 2005, she was nominated for three Primetime Emmy Awards for her work on "Will & Grace", "Huff", and the television film "Back When We Were Grownups", winning for her role in "Huff". The following year, she won a second consecutive Emmy Award for "Huff". For 25 years, she has been a regular performer at the Williamstown Summer Theater Festival, where she also serves on the Board of Directors.