Jaime Murray (born 21 July 1977, height 5' 7" (1,70 m)) is an English actress, best known for playing Stacie Monroe in the BBC television series Hustle (2004–2007; 2012) and Lila West in season two of the Showtime television series Dexter (2007). She is also known for her recurring roles as Grace Valentine in The CW's Valentine (2008–2009), as Gaia in Starz' Spartacus: Gods of the Arena (2011) and as Olivia Charles in The CW's Ringer (2011–2012). She is currently appearing as Stahma Tarr in the Syfy series Defiance and Helena G. Wells in Warehouse 13.