Spooks (TV series)
Spooks (known as MI-5 in some countries) is a British television drama series that originally aired on BBC One from 13 May 2002 to 23 October 2011, consisting of 10 series. The title is a popular colloquialism for spies, and the series follows the work of a group of MI5 officers based at the service's Thames House headquarters, in a highly secure suite of offices known as The Grid. It is notable for various stylistic touches, and its use of popular guest actors. In the United States, the show is broadcast under the title "MI-5". In Canada, the programme originally aired as "MI5" but now airs on BBC Canada as "Spooks".
Spooks (series 10)
Two main characters from the ninth series did not return for the tenth. Richard Armitage did not return as Lucas North. Firth has stated that Lucas "was always going to die" at the end of the ninth series. At the time the series was produced, Armitage was filming for "The Hobbit" film project. Also, Sophia Myles did not return as Beth Bailey as the character was decommissioned between the ninth and tenth series. Myles left the series as she wanted to pursue other projects in America. Matthew Macfadyen, who starred in the first two series as protagonist Tom Quinn, returned for a cameo appearance in the series finale.