Phillips previously played Carlotta on Broadway from June 3, 2003, through May 29, 2004. She also performed the role as part of the Toronto company and Canadian tour. In addition to Phantom, Phillips has appeared on the Great White Way in The Secret Garden, The Sound of Music and La Bohème. Her other theatrical credits include the national tour of Carousel and regional mountings of The Pajama Game and Man of La Mancha.