Tom Quinn

Matthew Macfadyen

Harry Pearce

Peter Firth

Zoe Reynolds

Keeley Hawes

Malcolm Wynn-Jones

Hugh Simon

Danny Hunter

David Oyelowo

Ruth Evershed

Nicola Walker

Adam Carter

Rupert Penry-Jones

Guest Star

Lisa Eichhorn

Jo Portman

Miranda Raison

Colin Wells

Rory MacGregor

Ros Myers

Hermione Norris

Tessa Phillips

Jenny Agutter

Jed Kelley

Graeme Mearns

Ellie Simm

Esther Hall

Lucas North / Armed Police Officer

Richard Armitage

Maisie Simm

Heather Cave

Guest Star

Christopher Fulford

Guest Star

Hugh Laurie

Guest Star

Lisa Faulkner

Guest Star

Tim Pigott-Smith

Guest Star

Debra Stephenson

Guest Star

Anthony Stewart Head

Guest Star

Karzan Krekar

Juliet Shaw

Anna Chancellor

Christine Dale

Megan Dodds

Guest Star

Jasper Jacob

Zafar Younis

Raza Jaffrey

Sam Buxton

Shauna MacDonald

Guest Star

Karen Westwood

Guest Star

Adam Kotz

Guest Star

Ken Bones

Tariq Masood

Shazad Latif

Connie James

Gemma Jones

Home Secretary / Nicholas Blake

Robert Glenister

Dimitri Levendis

Max Brown

Ben Kaplan

Alex Lanipekun

Wesley Carter

James Dicker

Home Secretary / William Towers

Simon Russell Beale

Fiona Carter

Olga Sosnovska

Bob Hogan

Matthew Marsh

Jenny

Gugu Mbatha-Raw

Beth Bailey

Sophia Myles

Dariush Bakhshi

Simon Abkarian

Ana Bakhshi

Agni Scott

Sarah Caulfield

Genevieve O'Reilly

Vaughan Edwards

Iain Glen

Maya Lahan

Laila Rouass

Erin Watts

Lara Pulver

Jim Coaver

William Hope

Annette

Naoko Mori

Calum Reed

Geoffrey Streatfeild

Will North

Richard Harrington

Sasha Gavrik

Tom Weston-Jones

Elena Gavrik

Alice Krige

Ilya Gavrik

Jonathan Hyde

Oliver Mace

Tim McInnerny

Vicki Westbrook

Natasha Little

Sholto / Lord Young

James Laurenson