Rose Eleanor Arbuthnot-Leslie (born 9 February 1987) is a Scottish actress. Born in Aberdeen, and grew up in Lickleyhead Castle, the family’s 15th century ancestral seat. Her father is the Aberdeenshire Chieftain of Clan Leslie, Sebastian Arbuthnot-Leslie, and her mother is Candida (“Candy”) Leslie (née Candida Mary Sibyl Weld). Leslie is the third of five children. Her parents own the 12th century Warthill Castle in Rayne, Aberdeenshire, as well. She attended first the local primary school in Rayne and then the private Millfield School before spending three years (2005–2008) at the London Academy of Music and Dramatic Art graduating with a BA Honours degree.
Leslie made her debut in the 2009 TV film New Town, for which she won the Scottish BAFTA for Best Acting Performance – New Talent Award. In September and October 2010, she appeared at the Globe Theatre in Nell Leyshon’s play Bedlam. She appeared in the role of Gwen, a housemaid, in the first series of the 2010 ITV television drama Downton Abbey. Beginning in the second season (2012) of the HBO fantasy TV series Game of Thrones, she appeared in that series as the wildling Ygritte.