Henry Lloyd-Hughes

Sherlock Holmes

Royce Pierreson

Dr. Watson

McKell David

Spike

Thaddea Graham

Bea

Jojo Macari

Billy

Harrison Osterfield

Leopold

Darci Shaw

Jessie

Clarke Peters

Linen Man

Eileen O'Higgins

Alice

Micah Loubon

Luke Porter

Lisa Dwyer Hogg

Sister Anna

Edward Hogg

Daimler

Nicola Goodchild

Archivist

Daniel Fearn

Barman

Suzie Chard

Prostitute

Anthony Bessick

Ring Announcer

Rory McCann

The Bird Master / Arthur Hilton

John Alan Roberts

Reporter (uncredited)

Jenny Kent

Lower Class Woman (uncredited)

Darryl Bradford

Middle Class Gentleman (uncredited)

Manoj Anand

Middle Class Professor (uncredited)

Neilesh Ambu

Book Seller (uncredited)

Ian Whyte

Plague Doctor

Marli Siu

Susan Shipley

Tania Nwachukwu

Nurse

Harriet Turnbull

Carla Machin

Jonathan Cheetham

Staring Hypnotised Man

Emma Canning

Isabelle

Anna Maxwell Martin

Edith Dubois