Alexandra Dowling is a British actress. She is a graduate from Oxford School of Drama and has a number of theater credits. She will appear in BBC's Merlin and will play the female lead in the feature film Hammer of the Gods opposite James Cosmo. 　　In Game of Thrones she is playing Roslin Frey. The news was announced on 11 November 2012. She joined the cast as a guest star in the third season.