Michael Weston

Harry Houdini

Stephen Mangan

Arthur Conan Doyle

Rebecca Liddiard

Constable Adelaide Stratton

Diana Quick

Cecilia Weiss

James Lance

Barrett Underhill

Simone Kirby

Sister Grace

Mary Healey

Mrs. Blake

Andrew Bicknell

Exorcist

James Fleet

Dr. Pilsen

Andrea Lowe

Beatrice Upton

Jeremy Swift

Dr. Henry Whitaker

Owen Teale

Professor Havensling

Emily Hampshire

Madame Korzha

Nathan Stewart-Jarrett

Elias Downey

Enuka Okuma

Jane Downey

Angela Curran

Vera Stuffts

Esh Alladi

Dr. Kasad

Gillian Saker

Rosie Berry

Adam Nagaitis

Sergeant George Gudgett

Tom Canton

Paul Hargreaves

Jobie McPartland

Terrified Woman (uncredited)

Sarah Abbott

Libby Cotter

Lara Jean Chorostecki

Clara Reid

Billy MacLellan

Constable Billy McKinnon

Peter Outerbridge

Thomas Edison

Emily Carey

Mary Conan Doyle

Noah Jupe

Kingsley Conan Doyle

Tim McInnerny

Chief Inspector Horace Merring

Jacob Blair

Benjamin Graves

Bo Martynowska

Young Woman

Paddy C. Courtney

Mr. Gaines

Louise Delamere

Touie Doyle

Jerry-Jane Pears

Florrie

Edward Akrout

Henry

Patrick Carney Junior

Upper Class Gent

Lady Conny Sharples

Amanda Posh

Gary Davies

Sgt. Chris Johnston

Will Chambers

Patient

Jennifer Day

Mourner

Adelayo Adedayo

Winnie

Kezia Davis

Convent Girl

Penny Downie

Mrs. Sulzbach

Philip Gascoyne

Scotland Yard Detective

Kate Hawley

Nun

Amanda Lawrence

Sister Mathilda

Eileen O'Brien

Sister Fabian

Allison Saxton

Nun

Georgie-May Tearle

Curious Onlooker

Kieran Thomas

Julian Kelly

Flora Turner

Lucy Allthorpe

Tereza Srbova

Natalie

Gavin Williams

Patron #3

Melissa Lianne Woods

Upper Class Lady

Harry Haynes

Officer Scott (uncredited)

Alex Jaep

Stage Assistant (uncredited)

Neil Swift

Upper Class Gentlemen (uncredited)

Sian Breckin

Margery McGuire

Stephen Colledge

Protestor

Shane Crehan

Claude DeBussy

Laura Fraser

Lydia Belworth

Samuel Joslin

Peter Bennett

Matt Lanigan

Frank Bennett

Ruth Lass

Clara Bennett

Phil Nice

Reverend Gilby

Andrew Bridgmont

Dr. Perlow

Paul Bergquist

Faith Healing Audience Member

Nicholas Burns

Frederick Batch

Neil Broome

The Coughing Man

Michael Dickins

Street Robber

Marshall Griffin

Security Guard

Amy Huberman

Mrs. Anne Batch

Nig Richards

Mourner

John Smeathers

Blind Man (uncredited)

Blake Harrison

Lyman Biggs

Michael Deighton

Working Class Man

Sebastian Croft

Newsie

Scott Jenkinson

Spring Heel'd Jack

Helen Millar

Isobel Underhill

Craig Conway

Angus Tuttle

Tommy McDonnell

Nigel Pennington

Ali Momen

Rustom Avari

Andy Gillies

Pumley

Anna Koval

Liliana

Brandon Oakes

Walt

Caleb Cosman

Corporal Bazay

Charlotte Hope

Molly Morgan

Chu Omambala

Dr. Randall

Daniel Matmor

Rabbi

Dave Reachill

Hotel Patron (uncredited)

Dritan Kastrati

Vladimir Palinov

Elias Toufexis

Roland Carson

Ewen Bremner

Sherlock Holmes

Janine Duvitski

Martha

Jason Redshaw

Brothel Customer (uncredited)

Joe Sims

Nathaniel

Kjartan Hewitt

Reverend Harley

Lewis McGowan

Young Doyle

Lex Shrapnel

Mitchell Pearce

Lily-Rose Aslandogdu

Julia Hargreaves

Mark Caven

Sherlock Holmes

Natalie Krill

Amelia

Natasha Sparkes

Sophie

Nicolas Van Burek

Stuart Branowski

Paul Ritter

Bram Stoker

Paul Warren

First Alien

Reece Noi

Daniel Berry

Richard Price

Houdini Stage Hand (uncredited)

Risteard Cooper

Charles Doyle

Simon Northwood

Mr. Emmett Reid

Stacey Gough

Head Guard

Thomas Howes

Constable Booth

Timothy Mooney

Mr. Turner