Davis first started out her professional career as a college student playing the lead role in the Texas Musical Drama in the Palo Duro Canyon State Park. Davis is seen as the Romanian "Nadia" on the New York-shot
Taxi: Brooklyn. She was also seen in FOX's
Fringe in the "
Ability" episode and on
One Life to Live. Davis has appeared in numerous Off-Broadway and regional theatre productions, including the Off-Broadway production of
Wolves as Kay at the
59E59 Theatre. She played the role of Sister James in
Doubt at the Gulfshore Playhouse in Naples, Florida and starred as Blanche Dubois in a production of
A Streetcar Named Desire at the Cleveland Playhouse. She played the role of Célimène in a New Jersey Shakespeare Festival production of
The Misanthrope and has also understudied the lead female role in the
New World Stages production of
The 39 Steps. She starred in
The Starship Astov at the Midtown International Theatre Festival, for which she was nominated for a MITF Best Actress award. Davis also starred as
Emily Dickinson in
Emily at
Theatre Row for which she won the New York Innovative Theater Award for Outstanding Actress in a Lead Role. Davis is best known for originating the role of Réza, the Czech roommate of leading lady
Cristin Milioti in
Once, a stage musical version of the
Academy Award-winning film
Once. Davis originated the role of Réza at the American Repertory Theatre at Harvard University and Off-Broadway at the New York Theatre Workshop. Her final performance as Réza in
Once was on March 24, 2013.
Once opened on Broadway on March 18, 2012 and received 11 Tony nominations, including Best Musical. For this role she was nominated for a
Tony Award for Best Featured Actress in a Musical. In May 2013, she joined
Christopher Lloyd and composer,
Duncan Sheik in
Classic Stage Company's rare production of
Bertolt Brecht's
Caucasian Chalk Circle. In April through May 2014, Davis starred in
Four Last Things at the American Globe Theater. Beginning in May 2022, Davis starred as
Thomas Jefferson in the
American Repertory Theater production of
1776. ==Stage credits==