David Budd (7 episodes, 2018)
Vicky Budd (6 episodes, 2018)
Mike Travis (6 episodes, 2018)
DCI Deepak Sharma (5 episodes, 2018)
Commander Anne Sampson (5 episodes, 2018)
CS Lorraine Craddock (5 episodes, 2018)
Stephen Hunter-Dunn (5 episodes, 2018)
PC Tom Fenton (5 episodes, 2018)
Rob MacDonald (5 episodes, 2018)
Roger Penhaligon (5 episodes, 2018)
Nick Robinson (5 episodes, 2018)
DS Louise Rayburn (4 episodes, 2018)
Ella Budd (4 episodes, 2018)
Charlie Budd (4 episodes, 2018)
Nadia Ali (4 episodes, 2018)
Martha Kearney (4 episodes, 2018)
Sophie Raworth (4 episodes, 2018)
Justin Webb (4 episodes, 2018)
Home Secretary Julia Montague (3 episodes, 2018)
Luke Aikens (3 episodes, 2018)
SO15 Officer (3 episodes, 2018)
Andy Apsted (3 episodes, 2018)
Longcross / Richard Longcross (3 episodes, 2018)
Police Officer (3 episodes, 2018)
PC Kim Knowles (3 episodes, 2018)
Chanel Dyson (3 episodes, 2018)
Tahir Mahmood (3 episodes, 2018)
Nadia's Solicitor (3 episodes, 2018)
Prime Minister (3 episodes, 2018)
Frank Gardner (3 episodes, 2018)
Laura Kuenssberg (3 episodes, 2018)
Mishal Husain (3 episodes, 2018)
Vicki Young (3 episodes, 2018)
SO15 Officer (2 episodes, 2018)
Surgical Administrator (2 episodes, 2018)
Surveillance Officer (2 episodes, 2018)
Rob's Solicitor (2 episodes, 2018)
Gordon Corera (2 episodes, 2018)
Susan Rae (2 episodes, 2018)
John Pienaar (2 episodes, 2018)
John Humphrys (2 episodes, 2018)
News Reporter (1 episode, 2018)
Reporter (1 episode, 2018)
Commissioner (1 episode, 2018)
Passerby (1 episode, 2018)
SCO19 Officer (1 episode, 2018)
Subject (1 episode, 2018)
Guard Sandra (1 episode, 2018)
SO15 Control (1 episode, 2018)
Passenger (1 episode, 2018)
MASTS (1 episode, 2018)
RASP Officer (1 episode, 2018)
OFC (1 episode, 2018)
ARV Leader (1 episode, 2018)
BTP (1 episode, 2018)
Expo Officer (1 episode, 2018)
Trauma Surgeon (1 episode, 2018)
SCO19 (1 episode, 2018)
Shadow Home Secretary (1 episode, 2018)
Expo (1 episode, 2018)
Police Officer (1 episode, 2018)
Security Guard (1 episode, 2018)
Gun Dealer (1 episode, 2018)
Security Manager (1 episode, 2018)
College Dean (1 episode, 2018)
Ben Wright (1 episode, 2018)
Receptionist (1 episode, 2018)
Andrew Marr (1 episode, 2018)
Simon McCoy (1 episode, 2018)
Annita McVeigh (1 episode, 2018)
Ava Eddingham (uncredited) (5 episodes, 2018)
Police Officer (uncredited) (3 episodes, 2018)
Home Office Supervisor (uncredited) (3 episodes, 2018)
DPG (SO6) Police Officer / PNC Police Officer (Image) (uncredited) (2 episodes, 2018)
Member of Parliament (uncredited) (2 episodes, 2018)
Terry (Home Secretary's Driver) (uncredited) (2 episodes, 2018)
Hospital patient (uncredited) (1 episode, 2018)
St Matthews College Dignitary (uncredited) (1 episode, 2018)
CTSFO Officer (uncredited) (1 episode, 2018)
Train Passenger (uncredited) (1 episode, 2018)
RIPA '18 Delegate (uncredited) (1 episode, 2018)
Protection Command Inspector (uncredited) (1 episode, 2018)
Member of Parliament (uncredited) (1 episode, 2018)
CTSFO Sniper (uncredited) (1 episode, 2018)
Journalist (uncredited) (1 episode, 2018)
DPG (SO6) Police Officer (uncredited) (1 episode, 2018)
News Anchor (uncredited) (1 episode, 2018)
Detective (uncredited) (1 episode, 2018)
Policeman (uncredited) (1 episode, 2018)
Train passenger (uncredited) (1 episode, 2018)
Passenger (uncredited) (1 episode, 2018)
Bodyguard (uncredited) (1 episode, 2018)
Police (uncredited) (1 episode, 2018)
TV Reporter 3 (uncredited) (1 episode, 2018)