Jaime Murray is an English actress known for playing Stacie Monroe in the BBC series Hustle. Lila West in the series Dexter. Gaia in the miniseries Spartacus, Gods of the Arena. Olivia Charles in the series Ringer. Helena G. Wells in the Syfy series Warehouse 13. Stahma Tarr in the Syfy series Defiance. Fiona/the Black Fairy in Once Upon a Time, and Antoinette in The Originals.