Saskia Reeves (born 16 August 1961) is a British actress, known for her roles in films including Close My Eyes (1991) , I.D. (1995), and Our Kind of Traitor (2016), in the 2000 miniseries Frank Herbert's Dune, and in TV series, including as a series regular in Luther (2010), Shetland (2016), and Slow Horses (2022–present).