David Mitchell

John 'Ludwig' Taylor / James Taylor

Anna Maxwell Martin

Lucy Betts-Taylor

Dipo Ola

DI Russell Carter

Izuka Hoyle

DS Alice Finch

Ben Ashenden

DC Ethan Cole

Gerran Howell

DC Simon Evans

Rumi Sutton

DC Caitlin Sullivan

Dorothy Atkinson

DCS Carol Shaw

Dylan Hughes

Henry Betts-Taylor

Sophie Willan

Holly Pinder

Ralph Ineson

Chief Constable Ziegler

Mark Bonnar

Gerran Howell

Sian Clifford

Joanne Kemper MP

Mia Austen

Jane

Jakub Bednarczyk

Young John

Stevie Binns

Carla

Scarlett Brookes

Sarah Gilmarsh

Annabelle Dowler

Esther Taylor

Ikky Kabir

Brian

Christos Lawton

Jamie

Tom McCall

Chris the Taxi Driver

Bridgitta Roy

Becka

Catherine Skinner

Claire

Ruth Clarson

Detective

Kewell Ganas

Alan Howells

Hammed Animashaun

Ross Barclay

Jamie Beamish

Ben Naylor

Tom Bell

Peter Williams

Alice May Feetham

Hannah Waldron

Felicity Kendal

Lady Camilla Bryce

Naveed Khan

Noel

Ethan Moorhouse

Elliot Collins

Alison Pargeter

Debbie Williams

Adam Ali

Tour Guide

Ella Bruccoleri

Megan Rowlands

Paul Chahidi

Adrian Tate

Julie Dray

Tanya

Amanda Lawrence

Julie Tate

Julie Legrand

Manon

Ivan Oyik

Myles North

Flip Webster

Mrs. Bowen

Heidi Berger

Katia

Karen Xiang

Yuna Tanaka

Mark Slaughter

Jordan Halshaw

Anton Cross

Ojay Turner

Natali McCleary

Zara Bassett

Allan Mustafa

Gary Jennings

Alex Romashov

Stefan Kaminski

Gavin Spokes

Connor Merton

Rob Jarman

Martin Symes

Derek Jacobi

Mr. Todd

Suzanne Ahmet

Gillian Botley

Sophie Allen

Ms. Chordwell's Interpreter

Rose Ayling-Ellis

Ms. Freya Chordwell

Frankie Minchella

Isaac Upton

Pablo Raybould

Barry

Sam Swainsbury

Mr. Bishop

Karl Pilkington

DI Matt Neville

Christopher Parramore

Mr. Durose

Yasmin Dacre

Sasha Sparks

Harry Spalding

School Boy

Raychel Addo

Police Officer

Josh Bolt

Adam Newsum