Isabel Gillies, the daughter of Linda Lee Gillies and Archibald Lewis Gillies of Manhattan, was married on Friday to DeSales Harrison, a son of Alice Corr Rogers of Palm Beach, Fla., and Robert Pegram Harrison of Atlanta. The Rev. Dr. Spenser Simrill, an Episcopal priest, performed the ceremony at the Burden Mansion in Manhattan.

The bride, 29, will continue to use her name professionally. She is a film and television actress, and has a role on ''Law and Order: Special Victims Unit,'' a drama on NBC-TV. She graduated from New York University.

Her father is the president of the Andy Warhol Foundation for the Visual Arts in Manhattan. Her mother is the director of the chancellor's office for development at the New York City Board of Education in Brooklyn.

The bridegroom, 30, is a candidate for a doctorate in English literature at Harvard and is studying at the Institute for Psychoanalytic Training and Research in New York. He graduated magna cum laude from Yale and received a master's degree in poetry from Johns Hopkins.

His father retired as the president of Barnacle Broadcasting, a radio and television business in Atlanta. The bridegroom is a stepson of John Burton Rogers, the chairman of the Westchase Corporation, a private investment company in Palm Beach, and of Ann May Harrison.

The bridegroom's previous marriage ended in divorce.