Robert Carlyle as Donald Harris

Rose Byrne as Scarlet

Jeremy Renner as Sergeant Doyle

Harold Perrineau as Flynn

Catherine McCormack as Alice

Imogen Poots as Tammy Harris

Mackintosh Muggleton as Andy

Idris Elba as General Stone

Amanda Walker as Sally

Shahid Ahmed as Jacob

Garfield Morgan as Geoff

Emily Beecham as Karen

Jordan El-Balawi as Boy in Cottage

Meghan Popiel as DLR Soldier

Stewart Alexander as Military Officer

Philip Bulcock as Senior Medical Officer

Chris Ryman as Rooftop Sniper

Tristan Tait as Soldier

William Meredith as Medical Officer

Thomas Garvey as Bunker Major

Tom Bodell as Medical Centre Lobby Soldier

Andrew Byron as Carpark Soldier

Sarah Finigan as Carpark Civilian

Roderic Culver as Carpark Civilian

Maeve Malley-Ryan as Carpark Civilian

Ed Coleman as Carpark Civilian

Karen Meagher as Carpark Civilian

Amanda Lawrence as Carpark Civilian

Drew Rhys-Williams as Carpark Civilian

Raymond Waring as Sam

Kish Sharma as Depot Man

Jane Thorne as Depot Woman

Matt Reeves as Bunker Soldier

Dean Alexandrou as Infected Person (uncredited)

Gareth Clarke as Infected Person (uncredited)

Debbie Kurup as Infected Person (uncredited)

Selina Lo as Infected Person (uncredited)

João Costa Menezes as Infected Person (uncredited)

Jude Poyer as Infected Person (uncredited)

Katie Borland as Infected (uncredited)

Pip Henderson as Infected (uncredited)

Jason Curle as Infected Person (uncredited)

Simon Delaney as Carpark Civilian