 Mallory says that Prince hired her for "A Little Night Music" after having her read just one line of the script and that she was the first cast member hired.She performed with, among others, the Los Angeles Civic Light Opera, the Pittsburgh CLO, the St. Louis Muny Opera, Atlanta's Theater Of The Stars, Kansas City Starlight, Dallas Summer Musicals, Utah's Pioneer Theatre Company, the Irish Repertory Theatre (NYC), etc.On television, she was best known for her role as Leslie Brooks on the soap opera "The Young and the Restless", which she took over from Janice Lynde in 1977.