Miss Williams has directed Susannah with the Arizona Opera, Tosca for both the Metropolitan Opera and Pittsburgh Opera, Don Giovanni at the Cincinnati Conservatory of Music, and Le Nozze di Figaro for the Opera Theater and Music Festival of Lucca.

She has also directed Il Barbiere di Siviglia with the Pittsburgh Opera, the Metropolitan Opera's productions of Pelléas et Mélisande and Kát'a Kabanová; and Le Nozze di Figaro at the Cincinnati Conservatory of Music for which she was awarded the National Opera Institute's Best Opera award.

For the San Francisco Opera she has directed numerous productions including Aida, Ruslan and Lyudmila, Andrea Chénier, La Cenerentola, La Traviata and Die Zauberflöte. Her work has been seen at Hawaii Opera Theatre (Norma, Roméo et Juliette, and Madama Butterfly), Skylight Opera (The Barber of Seville), Utah Opera (Turandot), Edmonton Opera (Carmen, Die Zauberflöte) and The Lyric Opera of Chicago (Andrea Chénier). Miss Williams made her Metropolitan Opera directing debut with Ruslan and Lyudmila for the Kirov Opera Festival.

She has worked extensively with young singers, directing Xerxes and Le Nozze di Figaro for Wolf Trap Opera and Così Fan Tutte and La Périchole for the San Francisco Opera Center.