At Northwestern University, March played Helena in "A Midsummer Night's Dream" in Chicago, where she continued to pursue her stage career. In 1997, she made her screen debut in an episode of the CBS series "Early Edition". In 1999, March moved to New York and made her Broadway debut in a production of Arthur Miller's "Death of a Salesman" with Brian Dennehy. She later co-starred in the television film based on the play. In 2007, March performed in the Broadway premiere of Eric Bogosian's "Talk Radio", starring Liev Schreiber. She also starred in Howard Korder's off-Broadway play "Boy's Life" alongside Jason Biggs.