Brid Brennan created the role of Agnes Mundy in Brian Friel's play Dancing at Lughnasa. She played the role in the original Dublin, West End and Broadway productions, winning a Tony Award for Best Featured Actress in a Play. She reprised her performance on screen in Noel Pearson's much acclaimed 1998 film version of the play starring Meryl Streep, for which Brennan won an Irish Film and Television Award.