Morey made her first screen appearance as Sonya during the episode broadcast on 14 August 2009 .
Morey successfully auditioned for the role of Sonya and joined the cast in June 2009 in a recurring capacity .
Morey made Morey 's first screen appearance as Sonya during the episode broadcast on 14 August 2009 .
Morey successfully auditioned for the role of Sonya and joined the cast in June 2009 in a recurring capacity .