Santa Claus

Jim Broadbent

Steve

Rafe Spall

Sally

Warwick Davis

Tom

Kit Connor

Alison

Jodie Whittaker

PC Finkerton

Ewen Bremner

Barber

Stephen Graham

Knuckles

Nonso Anozie

Ruth

Joanna Scanlan

Tony

Joshua McGuire

Jimbo

Perry Benson

WPC Boyle

Hera Hilmar

Lars

Bjarne Henriksen

Brian

Matt King

Policeman

Brian Bovell

Specs

Leigh Gill

Entwhistle

Big Mick

Ugly Sister

Simon Kunz

Dolores

Bernadette Windsor

Buster Evergreen

Graham Hughes

Hoarse Prisoner

Mark Del Amo

Another Prisoner

Neil Ashton

Channel 4 Newsreader / Himself

Jon Snow

Breakfast TV Presenter / Herself

Susanna Reid

Radio News Reporter

Daniel Barker

Elf (uncredited)

Craig Garner

Guard

Nicholas Camm

Elf

Mikey Thompson

News Reporter

Alisdair Simpson