Most sources report Morris was born in Cincinnati, Ohio (though CBS News identifies her birthplace as Dallas). She was raised in the Church of Christ in Windsor Locks, Connecticut, and toured the country in the family's singing group, Morris Code, along with her 6 other siblings. Some people call her Kathy. She attended two colleges in the Philadelphia area, including Temple University.

She lives in Los Angeles, California. In 2003, she was briefly engaged to Randy Hamilton, a financial advisor. She is currently dating David Barrett, a director and producer who has worked on Cold Case.