Benedict Cumberbatch
Stephen Lewis
Kelly Macdonald
Julie Lewis
Stephen Campbell Moore
Charles Darke
Saskia Reeves
Thelma Darke
Andrea Hall
Policewoman
Jim Creighton
Male Neighbour
Beatrice White
Kate Lewis
Rosa-Marie Lewis
Shop Assistant
Franc Ashman
Lydia Webb
Anna Madeley
Rachel Murray
John Hopkins
Home Secretary
Elliot Levey
Prime Minister
Lucy Liemann
Joanna Buckley
Natasha Brown
Steven's Young Mother
Laurence Spellman
Greg Ellis
Richard Durden
Stephen's Father
Geraldine Alexander
Stephen's Mother
Gerard Monaco
Estate Agent
Tony Walker
Taxi Driver
Chase Collard
Ruth Lyle
Gehane Strehler
Mrs. Forrester
Karen Bryson
Mrs. Matterson
Doreene Blackstock
Nurse
Eloise Henwood
School Girl (uncredited)