Will Ferrell
Sherlock Holmes
Rob Brydon
Inspector Lestrade
Kelly Macdonald
Mrs. Martha Hudson
Ralph Fiennes
Professor James Moriarty
Hector Bateman-Harden
Young Holmes
Codie-Lei Eastick
Young Watson
Laura Stevely
Sherlock's Mom
Layla Rose Boyce
Nicotine Stains / Nancy
Tommy Gene Surridge
Inky Hands
Kieran O'Brien
Lestrade's P.C. Smalls
Jana Perez
Lestrade's Wife
David Shackleton
Albert Einstein
Paul Cassidy
Charlie Chaplin
Bronson Webb
Jonathan Nightingale
Jamie-Rose Monk
Mrs. Nightingale
Oliver Maltman
Telegraph Operator
David Stoller
Hudson's Guard
Ellie-Rose Eames
Newschild
Jamie Baughan
Titanic Ship Officer Liaison
Wesley Kent-Hargreaves
Weird Child Companion
Daniel Fearn
Drooling Man Companion
Darren Lake
Disoriented Man Companion
Gerard Monaco
Titanic Ship Officer
Michael Buffer
Fight Fan #1
Martin Bassindale
One Man Band
Sara Beasley
Mrs. Frobisher
Mark Behan
Ringside Bookie
Doug Berry
Lower Class Citizen
Steve Coogan
Gustav Klinger
Nick Davison
Upper Class Gentleman
Mark Anthony Dawson
Beefeater #1
Matthew Di Liello
Telly-Phone Assistant
Shawn Dixon
Upper Class Gentleman #1
Ian Doyle
Yeoman of the guard
Damon Driver
The Elephant Man
Sam Dunning
Queen's Footman
James Eeles
Manager Mr. Petrucka
Karl Farrer
Russian Merchant
Clare Foster
Lady Stepping
Michael Hennessy
Judge's Cleric
Phil Hodges
Mr. Algernon Barkworth
John Kinory
Instructing Solicitor
Craig Thomas Lambert
Yeoman of the Guard
Jorge Leon
British Soldier
Benjamin Lok
Courtroom Person 3
Joseph Macnab
Fitness Instructor
Neil Main
Screaming Soldier
Martyn Mayger
Buckingham Palace Guest
Hugh O'Brien
Garden Party Guest
Edward Olhausen
Street Urchin
Christopher Painter
Head Royal Footman
Richard Price
Grenadier Guard
Anthony Richard Rowe
Victorian Gentleman
Sonnyboy Skelton
Doxy's Dad
Chuen Tsou
Moriaty's Henchman
Adam Ward
Steve - Queen's Royal Guard
Samantha Sharon Watson
Elizabeth - Lady of the Night
Lochlan White
Newsie Kid Timmy
Riley White
Newsie Kid Jimmy
Christian Wolf-LaMoy
English Gentleman