Will Ferrell
Sherlock Holmes
John C. Reilly
Dr. John Watson
Rebecca Hall
Dr. Grace Hart
Kelly Macdonald
Mrs. Martha Hudson
Rob Brydon
Inspector Lestrade
Lauren Lapkus
Millie
Pam Ferris
Queen Victoria
Ralph Fiennes
Prof. James Moriarty / Jacob Musgrave
Adam Scherr
Brawn
Kieran O'Brien
PC Smalls
Noah Jupe
Doxy
Bella Ramsey
Flotsam
Colby Mulgrew
Haybag
Scarlet Grace
Pickle
Billy Jenkins
Mud Fog
Michael Culkin
The Judge
Jana Pérez
Lestrade's Wife
Wolf Roth
Sigmund Freud
Nathan Osgood
Mark Twain
David Shackleton
Albert Einstein
Paul Cassidy
Charlie Chaplin
Ben Lee
Houdini
Bronson Webb
Jonathan Nightingale
Jamie-Rose Monk
Mrs. Nightingale
Billy Zane
Billy Zane
Jason Thorpe
Butler
Robert Cawsey
Waiter
Stanley Eldridge
Waiter
Oliver Maltman
Telegraph Operator
David Stoller
Hudson's Guard
Jack Riley
Newschild
Lilly Aspell
Newschild
Ethan Rouse
Newschild
Ellie Rose Eames
Newschild
Jamie Baughan
Titanic Ship Officer Liaison
Helen Duff
Titanic Guest
Jess Liaudin
Hangman
Wesley Kent-Hargreaves
Weird Child Companion
Daniel Fearn
Drooling Man Companion
Darren Lake
Disorientated Man Companion
Martin Bishop
Priest
Gerard Monaco
Titanic Ship Officer
Michael Buffer
Fight Fan #1
Bruce Buffer
Fight Fan #2
Russell Wilcox
Announcer
Hector Bateman-Harden
Young Sherlock Holmes
Codie-Lei Eastick
Young Watson
Laura Stevely
Sherlock's Mother
Layla Rose Boyce
Nicotine Stains / Nancy
Sadie Newman
Jane
Harry Baxendale
Seamus
Ella Bright
Bridgette
Kenneth Hadley
Headmaster
Paul Bigley
Teacher #1
Sue Maund
Teacher #2
Tommy Gene Surridge
Inky Hands
Paddy Holland
Tough Kid
Hugh Laurie
Mycroft Holmes (uncredited)
Steve Coogan
Gustav Klinger (uncredited)
Phil Hodges
Mr. Algernon Barkworth (uncredited)
Sara Beasley
Mrs. Frobisher (uncredited)
James Eeles
Manager Mr. Petrucka (uncredited)
Paul T.T. Easter
John (uncredited)
Jordan Long
Herbert (uncredited)
Sonnyboy Skelton
Doxy's Dad (uncredited)
Willem Dalby
Newsie Man (uncredited)
Riley White
Newsie Kid - Jimmy (uncredited)
Lochlan White
Newsie Kid - Timmy (uncredited)
John Kinory
Instructing Solicitor (uncredited)
Benjamin Lok
Courtroom Person 3 (uncredited)
Pete Freerunner Simpson
Police Officer (uncredited)
Samantha Sharon Watson
Elizabeth - Lady of the Night (uncredited)
Joseph Macnab
Fitness Instructor (uncredited)
Martin Bassindale
One Man Band (uncredited)
Amelia O'Loughlin
White Star-Line Girl (uncredited)
Karl Farrer
Russian Merchant (uncredited)
Matthew Di Liello
Telly-Phone Assistant (uncredited)
David Handley
Executioner (uncredited)
Craig Thomas Lambert
Yeoman of the Guard (uncredited)
Jorge Leon
British Soldier (uncredited)
Martyn Mayger
Buckingham Palace Guest (uncredited)
Hugh O'Brien
Garden Party Guest (uncredited)
Deepak Anand
Nobleman (uncredited)
Shawn Dixon
Upper Class Gentleman #1 (uncredited)
Anthony Richard Rowe
Victorian Gentleman (uncredited)
Mick Slaney
Docker (uncredited)
Henrihs Ahmadejevs
Drunk (uncredited)
Lindy Barrett
School Girl (uncredited)
