Sherlock Holmes

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

Clive Russell

As Captain Tanner

Oran Gurel

As Reordan

David Garrick

As McMurdo

Ky Discala

As Maid

Andrew Brooke

As Guard Captain

Tom Watt

As Carriage Driver

John Kearney

As Carriage Driver

Sebastian Abineri

As Coach Driver

Jonathan Gabriel Robbins

As Guard

James A. Stephens

As Captain Philips

Terence Taplin

As Groundskeeper

Bronagh Gallagher

As Palm Reader

Ed Tolputt

As Anonymous Man

Joe Egan

As Big Man

Jefferson Hall

As Young Guard

Miles Jupp

As Waiter

Marn Davies

As Police Officer

Andrew Greenough

As Prison Guard

Ned Dennehy

As Man with Roses

Martin Ewens

As Removable Man

Amanda Grace Johnson

As Young Woman Sacrifice

James Greene

As Governor

David Emmings

As Grave Policeman

Ben Cartwright

As Grave Policeman

Chris Sunley

As Grave Policeman

Michael Jenn

As Preacher

Timothy O'Hara

As Porter / Smith

Guy Williams

As Golden Dawn Envoy

Peter Miles

As Thug

Rocco Ritchie

As Boy in the Street (uncredited)