In August 2013 Johanna Day costarred with Reg Rogers in the world premiere of Carly Mensch's play Oblivion at the Westport Country Playhouse.
[2] She costarred with Amelia Campbell in Penn State Centre Stage 2013 production of David Lindsay-Abaire's play Good People.
[3] She appeared with Tracy Letts and Parker Posey in the world premiere of Will Eno's play The Realistic Joneses on April 20, 2012 at the Yale Repertory Theatre.
Johanna Day won the Helen Hayes Award as Leading Actress in a Resident Play for her starring role in the 2006 Arena Stage production of The Rainmaker.
In 2008, she was a nominee for the Drama Desk Award for Outstanding Featured Actress in a Play for her role of Ann in the Second Stage Theatre production of Edward Albee's Peter and Jerry.