Eccentric consulting detective Sherlock Holmes and Doctor John Watson battle to bring down a new nemesis and unravel a deadly plot that could destroy England.
Robert Downey Jr.
as Sherlock Holmes
Jude Law
as Dr. John Watson
Rachel McAdams
as Irene Adler
Mark Strong
as Lord Henry Blackwood
Eddie Marsan
as Inspector Lestrade
Robert Maillet
as Dredger
Geraldine James
as Mrs. Hudson
Kelly Reilly
as Mary Morstan
William Houston
as Constable Clark
Hans Matheson
as Lord Coward
James Fox
as Sir Thomas Rotheram
William Hope
as Ambassador Standish
