Overview
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.
Cast
- Peter Firth as Harry Pearce
- Nicola Walker as Ruth Evershed
- Max Brown as Dimitri Levendis
- Lara Pulver as Erin Watts
- William Hope as Jim Coaver
- Alex Lanipekun as Ben Kaplan
- Geoffrey Streatfeild as Calum Reed
- Tom Weston-Jones as Sasha Gavrik
- Alice Krige as Elena Gavrik
- Jonathan Hyde as Ilya Gavrik