Karen Ziemba is an American actress and singer. She made her Broadway debut in A Chorus Line. Ziemba headlined the original musical Steel Pier in 1997 and led the revival of 110 in the Shade in 1992. She starred as the lead in the hit musical Crazy for You and also performed as Peggy Sawyer in 42nd Street. Ziemba has also performed in the New York City Opera staging of The Most Happy Fella and the ensemble of the revue And the World Goes Round.