Kane was born in Cleveland, Ohio , the daughter of Joy, a jazz singer, teacher, dancer, and pianist, and Michael Kane, an architect who worked for the World Bank .  Her family is Jewish , and her grandparents emigrated from Russia .  Her parents divorced when she was 12 years old.  She attended the Cherry Lawn School, a progressive boarding school in Darien, Connecticut , until 1965.   She also went to the Professional Children's School , in New York City, and made her professional theatre debut in a 1966 production of The Prime of Miss Jean Brodie , starring Tammy Grimes .