[3] She first appears in the series nine premiere disguised as a prostitute in a freighter from Tangier, working to track Hussein Abib, a Somali terrorist Lucas North (Richard Armitage) was sent to kill.

You exploit death, violence and misery for money.Actress Sophia Myles said that Beth believes Dimitri Levendis, (Max Brown) to be her closest ally because of their same age and time they joined MI5, comparing the two as "new kids at school".

"[5] The character Beth Bailey and portraying actress Sophia Myles was first revealed in March 2010 as a replacement for Jo Portman (played by Miranda Raison), who left Spooks during the eighth series.

Reflecting on the departure of Ros Myers, Adam Sweeting of The Arts Desk believed that Beth "looks poised to bring a refreshingly brash self-confidence to the party.

"[8] Comparing some of Sophia Myles' earlier roles, Vicky Power of The Daily Telegraph said that her "grubby debut" in Spooks is "noteworthy" because of a "leap from the crinolined English roses we've seen her play up to now in costume dramas such as Mansfield Park, The Adventures of Nicholas Nickleby and Tristan & Isolde.

[6] In review of the second episode of series nine, Jane Simon of the Daily Mirror stated that Myles "is already proving to be a most exciting addition to the Spooks team," and Beth can "handle herself pretty well.