Beth Bailey is a fictional character from the BBC espionage television series Spooks, which follows the exploits of Section D, a counter-terrorism division in MI5. She is portrayed by British actress Sophia Myles. Beth Bailey was introduced in Spooks's ninth series as a private contractor in her first episode, and later joins Section D. The character is based on a real-life person Myles met while working on the series. Reaction towards the character was generally positive.