Hugh Bonneville

Brian

Acting

Anna Chancellor

Laura

Acting

Sebastian Street

Mark

Acting

Nathalie Adlam

Acting

Edward Akrout

Acting

Simon Chandler

Surgeon

Acting

Ed Coleman

CCTV repairman

Acting

Darren Kempson

Taxi driver

Acting

Cyril Nri

CCTV Controller

Acting

Jackie Robinson-Brown

Nurse

Acting