A New York native, Nana was born and raised on the westside, in and around the theater district. The daughter of theatrical parents, Nana's father was a Broadway choreographer, and her mother, a ballet instructor. Nana herself began to study ballet in her mother's studio at age 7, and by the end of high school, was tapping her way to Broadway.
Visitor appeared with Angela Lansbury in the touring production of "Gypsy," and later appeared in "42nd Street." Her other stage credits include "My One and Only," "The Ladies Room" at the Tiffany Theater in Los Angeles, and "A Musical Jubilee." While still in New York, Nana appeared in the ABC daytime soap operas Ryan's Hope and One Life to Live. Nana made her feature film debut appearing with Ava Gardner in "The Sentinel."
Since arriving in Los Angeles in 1985, Nana has appeared in many television shows such as Empty Nest, Murder, She Wrote, Baby Talk, thirtysomething, Jake and the Fatman, L.A. Law, In the Heat of the Night, and Matlock. In addition, Nana starred in the role of Bryn Newhouse on the NBC sitcom Working Girl.
Visitor and her husband, Star Trek: Deep Space Nine co-star Alexander Siddig, reside in Los Angeles.