- Beau Gadsdon - Ella Lawrence
- Samuel Leakey - Callum Lawrence
- Alex Kingston - Audrey Gratz
- Tracy Ifeachor - Dede Alexander
- Adam James - Patrick Hamilton
- Sargon Yelda - Malik Banajee
- Kevin Harvey - Olamide Bello
- Dinita Gohil - Zoe
- John Lightbody - PPO Frank Scott
- Jonathan Nyati - PPO Bob Hayes
- Joe Macaulay - PPO Pete Barnes
- Joanna Horton - Rebecca Rossano
- Joseph Kloska - Thomas Keegan
- Richard Huw - Lord Lambert
- Dan Shaw - Ex-Serviceman
- Mark Ramsay - Doorman
- Alexandra Guelff - CIA Agent Gore
- Alex Magliaro - CIA Agent Harrington
- Brian Law - CIA Agent Tao
- Annabel Wood - Joanne Allinson
- Syrus Lowe - Kit Harper
- Clare Holman - Mary Angelis
- ?????? ?????????? - Lord Anton Melnikov
- Simon Lenagan - Robert Kirby
- Rishi Nair - Met Officer
- Avital Lvova - Irina Belova
- Jonathan Rhodes - Constituent
- Evan Davis - Newsreader
- Evan Davis - Newsreader
- Nathalie Armin - Lydia Jenna
- Claire Lacey - Committee Chair
- Matt Charman
- Foz Allan
- Valery Ryan
- Sarah Crowe
- Jamie Salisbury
Charlie Cox interpreta a Adam Lawrence en la serie.
Olga Kurylenko interpreta a Kara Yusova en la serie.
Oona Chaplin hace el papel de Maddy De Costa.
Ciarán Hinds interpreta a Sir Martin Angelis en la serie.
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