High Quality Content by WIKIPEDIA articles! Ruth Evershed is a fictional Senior Intelligence Analyst seconded from GCHQ to MI5, featured in the British Television Series Spooks, also known as MI-5 in the United States. Ruth was played by Nicola Walker from the time the character joined the show in 2003, until Walker left to have a baby in 2006. She returned in 2009 and continued her role until her character`s death in the final episode of Series 10.