Eileen, Galler Kraliyet Müzik ve Drama Koleji'nde eğitim almıştır: The 24 Hour Plays (Old Vic Theatre, Londra), Lucrezia Borgias (English National Opera), Assassins (Old Vic New Voices), Sum Zero (Lyric Hammersmith), A Very Important Thing To Do (Theatre 503), Hold Your Tongue Hold Your Dead (Semel Theatre Boston) ve A Meditation On Fiction & Reality (Arcola Theatre, Londra).