| cast |
 |
|
|
|
| Robert Downey Jr. | Robert Downey Jr. as Sherlock Holmes | Jude Law | Jude Law as Dr. John Watson |
| Rachel McAdams | Rachel McAdams as Irene Adler | Jared Harris | Jared Harris as Professor Moriarty |
| Eddie Marsan | Eddie Marsan as Inspector Lestrade | Geraldine James | Geraldine James as Mrs. Hudson |
| Clive Russell | Clive Russell as Captain Tanner | Jack Laskey | Jack Laskey as Carruthers |
| Kelly Reilly | Kelly Reilly as Mary Morstan | Noomi Rapace | Noomi Rapace as Sim |
| Stephen Fry | Stephen Fry as Mycroft Holmes | |