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