Peter Firth
Harry Pearce
Tense drama series about the different challenges faced by the British Security Service as they work against the clock to safeguard the nation. 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.
Harry Pearce
Malcolm Wynn-Jones
Ruth Evershed
Adam Carter
Jo Portman
Ros Myers
Colin Wells
Danny Hunter
Lucas North
Zoe Reynolds
Zafar Younis
Sam Buxton
Tom Quinn
Tariq Masood
Connie James
Home Secretary
Dimitri Levendis
Juliet Shaw
Ben Kaplan
Wesley Carter
