All Cast
Jim Broadbent
Santa Claus
Rafe Spall
Steve
Warwick Davis
Sally
Jodie Whittaker
Alison
Stephen Graham
Barber
Joanna Scanlan
Ruth
Kit Connor
Tom
Joshua McGuire
Tony
Ewen Bremner
PC Finkerton
Hera Hilmar
WPC Boyle
Nonso Anozie
Knuckles
Perry Benson
Jimbo
Matt King
Brian
Bjarne Henriksen
Lars
Mick Walter
Entwhistle
Brian Bovell
Policeman
Simon Kunz
Ugly Sister
Graham Hughes
Buster Evergreen
Leigh Gill
Specs
Mark Del Amo
Hoarse Prisoner
Neil Ashton
Another Prisoner
Susanna Reid
Breakfast TV Presenter/Herself
Jon Snow
Channel 4 Newsreader/Himself
Daniel Barker
Radio News Reporter
Craig Garner
Elf (uncredited)
Nicholas Camm
Guard