BBC series Spooks (MI-5 in the US) recently finished airing the last episode of Season 9 in the UK. In the US you can catch old episodes of the series on select PBS (Public Television) stations.
Richard Armitage starred in Series 7, 8, and 9 of Spooks (MI-5) as Lucas North. Below is a small video to remember this very complex character and the complex actor that played him so well:
They've already announced there will be a 10th season of Spooks next year.