Sherlock Holmes

Will Ferrell

Dr. Watson

John C. Reilly

Grace Hart

Rebecca Hall

Inspector Lestrade

Rob Brydon

Mrs. Martha Hudson

Kelly Macdonald

Gustav Klinger

Steve Coogan

Millicent

Lauren Lapkus

Queen Victoria

Pam Ferris

Prof. James Moriarty / Jacob Musgrave

Ralph Fiennes

Mycroft

Hugh Laurie

Wrestler

Adam Scherr

Doxy

Noah Jupe

Lestrade's PC Smalls

Kieran O'Brien

Flotsam

Bella Ramsey

Hay Bag

Colby Mulgrew

Pickle

Scarlet Grace

Sigmund Freud

Wolf Roth

Mud Fog

Billy Jenkins

Jonathan Nightingale

Bronson Webb

Judge Over

Michael Culkin

Lestrade's Wife

Jana Pérez

Lady Stepping

Clare Foster

Newsie Man (uncredited)

Willem Dalby

Mark Twain

Nathan Osgood

Albert Einstein

David Shackleton

Charlie Chaplin

Paul Cassidy

Titanic Ship Officer

Gerard Monaco

British Soldier

Jorge Leon Martinez

Mrs. Nightingale

Jamie-Rose Monk

Butler

Jason Thorpe

Herbert (uncredited)

Jordan Long

Waiter

Robert Cawsey

Mr. Petrucka (uncredited)

James Eeles

Waiter 2

Stanley Eldridge

Tough Kid (uncredited)

Paddy Holland

Russian Merchant (uncredited)

Karl Farrer

Telegraph Operator

Oliver Maltman

Harden-Young Sherlock Holmes

Hector Bateman

Guard (Southhampton)

David Stoller

Newschild

Jack Riley

White Star-Line Girl

Amelia O'Loughlin

Newschild

Lilly Aspell

Newsreader

Ethan Rouse

Jimmy (uncredited)

Riley White

Newschild

Ellie Rose Eames

La'Moy-English Gentleman

Christian Wolf

Titanic Ship Officer Liaison

Jamie Baughan

Bridgette (uncredited)

Ella Bright

Titanic Guest

Helen Duff

Hangman

Jess Liaudin

Steve - Queen's Royal Guard

Adam Ward

Weird Child Companion

Wesley Kent-Hargreaves

Drooling Man Companion

Daniel Fearn

Beefeater #1

Anthony M. Dawson

Fitness Instructor (uncredited)

Joseph Macnab

Disorientated Man Companion

Darren Lake

Priest

Martin Bishop

Nobleman (uncredited)

Deepak Anand

Telly-Phone Assistant

Matthew DiLiello

Timmy (uncredited)

Lochlan White

Houdini

Ben Lee

Fight Fan #1

Michael Buffer

Fight Fan #2

Bruce Buffer

Courtroom Person #3 (uncredited)

Benjamin Lok

The Announcer

Russell Wilcox

Tough Kid 2

Tommy Surridge

Billy Zane

Billy Zane

Upper Class Gentleman #1 (uncredited)

Shawn Dixon

Young Sherlock Holmes (uncredited)

Hector Bateman-Harden

Sherlock's Mother (uncredited)

Laura Stevely

Young Watson (uncredited)

Codie-Lei Eastick

Mr. Algernon Barkworth (uncredited)

Phil Hodges

Nicotine Stains / Nancy

Layla Rose Boyce

Jane (uncredited)

Sadie Newman

Seamus (uncredited)

Harry Baxendale

School Girl

Lindy Barrett

Doxy's Dad (uncredited)

Sonnyboy Skelton

Headmaster (uncredited)

Kenneth Hadley

Buckingham Palace Guest (uncredited)

Martyn Mayger

Teacher #1 (uncredited)

Paul Bigley

Executioner

David Handley

Teacher #2 (uncredited)

Sue Maund

Inky Hands (uncredited)

Tommy Gene Surridge

Mrs. Frobisher (uncredited)

Sara Beasley

Docker (uncredited)

Mick Slaney

John (uncredited)

Paul T.T. Easter

Yeoman of the Guard (uncredited)

Craig Thomas Lambert

Instructing Solicitor (uncredited)

John Kinory

Drunk

Henrihs Ahmadejevs

One Man Band (uncredited)

Martin Bassindale

Victorian Gentleman (uncredited)

Anthony Richard Rowe

Queen Victoria's Grenadier Guard

Joey Grima

Street Urchin

Edward Olhausen

Hargreaves-The Weird Child

Wesley Kent

Screaming Soldier

Neil Main

Phone Guy

David Bromley

Ringside Bookie

Mark Behan

British Soldier (uncredited)

Jorge Leon

Policeman

Angus Cook

Queens Footman

Samuel Dunning