Bergamini succeeds Helen Anker.
Bergamini was previously seen on Broadway in South Pacific. She has toured nationally as Franca in The Light in the Piazza, Jellylorum in Cats and in the cast of Evita.
As previously announced, the musical will play its final performance on Broadway Jan. 2, 2011, having played 30 preview and 291 regular performances.
The cast currently features Sean Hayes as Chuck Baxter, Kristin Chenoweth as Fran Kubelik, Tony Goldwyn as J.D. Sheldrake, Molly Shannon as Marge MacDougall and Dick Latessa as Dr. Dreyfuss, Brooks Ashmanskas as Mr. Dobitch, Peter Benson as Mr. Kirkeby, Seán Martin Hingston as Mr. Eichelberger and Ken Land as Jesse Vanderhof.
Promises, Promises plays the Broadway Theatre.