The cast of Sherlock, by character.
Main cast[]
- Sherlock Holmes – The world's only "Consulting Detective", played by Benedict Cumberbatch ("Unaired Pilot", Series One, Series Two, Series Three)
- Dr John Watson – A former Army doctor and the best friend and assistant of Sherlock Holmes, played by Martin Freeman ("Unaired Pilot", Series One, Series Two, Series Three)
- Mrs Martha Louise Hudson – The owner of 221 Baker Street and Sherlock and John's landlady, played by Una Stubbs ("Unaired Pilot", Series One, Series Two, Series Three)
- Mycroft Holmes – The brother of Sherlock Holmes, played by Mark Gatiss ("A Study in Pink", "The Great Game", "A Scandal in Belgravia", "The Hounds of Baskerville", "The Reichenbach Fall", "The Empty Hearse", "The Sign of Three", "His Last Vow")
- DI Greg Lestrade – A Detective Inspector with Scotland Yard, played by Rupert Graves ("Unaired Pilot", "A Study in Pink", "The Great Game", "A Scandal in Belgravia", "The Hounds of Baskerville", "The Reichenbach Fall", "The Empty Hearse", "The Sign of Three", "His Last Vow")
- Molly Hooper – A Specialist Registrar at St Bartholomew's Hospital, played by Louise Brealey ("Unaired Pilot", "A Study in Pink", "The Blind Banker", "The Great Game", "A Scandal in Belgravia", "The Reichenbach Fall", "The Empty Hearse", "The Sign of Three", "His Last Vow")
- Jim Moriarty – The world's only "Consulting Criminal", played by Andrew Scott ("The Great Game", "A Scandal in Belgravia", "The Hounds of Baskerville", "The Reichenbach Fall", "The Empty Hearse", "His Last Vow")
- Mary Watson – A former assassin married to John Watson, played by Amanda Abbington ("The Empty Hearse", "The Sign of Three", "His Last Vow")
Recuring characters[]
- Anderson – a member of the forensics team at Scotland Yard, played by Jonathan Aris ("Unaired Pilot", "A Study in Pink", "The Reichenbach Fall", "The Empty Hearse", "His Last Vow")
- Sally Donovan – a Scotland Yard police officer, played by Vinette Robinson ("Unaired Pilot", "A Study in Pink", "The Great Game", "The Reichenbach Fall", "The Sign of Three")
- Dr Sarah Sawyer – an English doctor who works in the London clinic which Dr John Watson applies and dates him for a time, played by Zoe Telford ("The Blind Banker", "The Great Game")
- Ella Thompson – a therapist that Dr John Watson sees after he is shot during the war in Afghanistan, played by Tanya Moodie ("Unaired Pilot", "A Study in Pink", "The Reichenbach Fall")
- Janine Hawkins – the personal assistant of Charles Augustus Magnussen, and the girlfriend of Sherlock Holmes ("The Sign of Three", "His Last Vow")
Notable guest stars[]
- Angelo – the owner of a London restaurant, played by Stanley Townsend ("Unaired Pilot", "A Study in Pink")
- Anthea – trusted assistant to Mycroft Holmes, played by Lisa McAllister ("A Study in Pink", "The Empty Hearse")
- Henry Knight - a client of Sherlock Holmes, played by Russell Tovey ("The Hounds of Baskerville")
- Irene Adler – a dominatrix working with Jim Moriarty, played by Lara Pulver ("A Scandal in Belgravia")
- Kitty Riley – an investigative journalist, played by Katherine Parkinson ("The Reichenbach Fall")
- Mike Stamford – a doctor who teaches at St. Bartholomew's Hospital and introduces Dr John Watson to Sherlock Holmes, played by David Nellist ("Unaired Pilot", "A Study in Pink")
- Sebastian Wilkes – an Investment Banker – Director of the Trading Floor at Shad Sanderson Bank in London, played by Bertie Carvel ("The Blind Banker")
- Soo Lin Yao – a Chinese pottery expert, working at the National Antiquities Museum in London, played by Gemma Chan ("The Blind Banker")
- Howard Shilcott – a client of Sherlock Holmes, played by David Fynn ("The Empty Hearse")
- Major James Sholto – the former army commander of John Watson, played by Alistair Petrie ("The Sign of Three")
- Bill Wiggins – a chemist and drug user who helps Sherlock Holmes, played by Tom Brooke ("His Last Vow")
Police, army and other law enforcement[]
- DI Dimmock – a member of the Scotland Yard Police Force, played by Paul Chequer ("The Blind Banker")
- Archer – an American CIA-trained agent, played by Peter Pedrero ("A Scandal in Belgravia")
- DI Carter – a Detective Inspector with Scotland Yard, played by Danny Webb ("A Scandal in Belgravia")
- Neilson – a CIA field operative who interrogates Mrs Hudson, played by Todd Boyce ("A Scandal in Belgravia")
- Corporal Lyons – a British Army Officer stationed at Baskerville Military Base, played by Will Sharpe ("The Hounds of Baskerville")
- Major Barrymore – a British Army Officer in charge of overseeing the Baskerville Military Base, played by Simon Paisley Day ("The Hounds of Baskerville")
- Chief Superintendent – the unnamed Chief Superintendent of Scotland Yard, played by Tony Pitts ("The Reichenbach Fall")
Criminals[]
- Jeff Hope – a taxi driver and serial killer who killed four people, played by Phil Davis ("Unaired Pilot", "A Study in Pink")
- Eddie Van Coon – a business man and member of the Black Lotus Tong gang, played by Daniel Percival ("The Blind Banker")
- General Shan – a General for the Black Lotus Tong, played by Sarah Lam ("The Blind Banker")
- Zhi Zhu – an assassin for the Black Lotus Tong ("The Blind Banker")
- Barry Berwick – an English murderer who is in jail in Minsk, Belarus, played by Matthew Needham ("The Great Game")
- Oscar Dzundza (The Golem) - a mysterious contract assassin hired by Jim Moriarty, played by John Lebar ("The Great Game")
- Joe Harrison – a Messenger and drug dealer, played by Doug Allen ("The Great Game")
- Dr Bob Frankland – a research scientist at the Baskerville Military Base near Dartmoor, played by Clive Mantle ("The Hounds of Baskerville")
- Raoul de Santos – Connie Prince's housekeeper, played by Stefano Braschi, ("The Great Game")
- Lord Moran – a peer of the realm, nearly responsible for blowing up the Houses of Parliament ("The Empty Hearse")
- The Mayfly Man (Jonathon Small) – a wedding photographer who conspires to kill Major James Sholto ("The Sign of Three")
- Charles Augustus Magnussen – a powerful newspaper man who blackmails people using information in his mind, played by Lars Mikkelsen ("The Empty Hearse", "His Last Vow")
Victims[]
- Sir Jeffrey Patterson – one of the victims of Jeff Hope, played by William Scott-Masson ("A Study in Pink")
- Jennifer Wilson – Media representative and victim of Jeff Hope, played by Louise Breckon-Richards ("A Study in Pink")
- Brian Lukis – a freelance journalist, played by Howard Coggins ("The Blind Banker")
- Connie Prince – a popular TV personality in the UK who had her own makeover advice show, played by Di Botcher ("The Great Game")
- Andrew West – worked as a Government Employee for the Ministry of Defense, played by San Shella ("The Great Game")
- Alex Woodbridge – a security guard at the Hickman Gallery ("The Great Game")
Interviewees[]
- Amanda – the Personal Assistant to Eddie Van Coon at Shad Sanderson Bank, played by Olivia Poulet ("The Blind Banker")
- Andy Galbraith – works at the National Antiquities Museum appraising items, played by Al Weaver ("The Blind Banker")
- Professor Cairns – a Professor of Astronomy at the Planetarium, played by Lynn Farleigh ("The Great Game")
- Lucy Harrison – a young woman who was engaged to Andrew West, played by Lauren Crace ("The Great Game")
- Kenny Prince – brother of Connie Prince and boyfriend of Raoul de Santos, played by John Sessions ("The Great Game")
- Miss Wenceslas – owner of The Hickman Gallery, played by Haydn Gwynne ("The Great Game")
- Gary – landlord of The Cross Keys Inn in Grimpen, Dartmoor, played by Gordon Kennedy ("The Hounds of Baskerville")
- Dr Louise Mortimer – a psychologist who is helping counsel Henry Knight, played by Sasha Behar ("The Hounds of Baskerville")
- Dr Jacqui Stapleton – a genetic scientist who works at Baskerville Military Base near Dartmoor, played by Amelia Bullmore ("The Hounds of Baskerville")
Other[]
- Jeanette – a teacher who was in a relationship with John Watson, played by Oona Chaplin ("A Scandal in Belgravia")
- Kate – a live-in associate of Irene Adler, played by Rosalind Halstead ("A Scandal in Belgravia")
- The Judge – the judge who is overseeing the trial of Jim Moriarty, played by Malcolm Rennie ("The Reichenbach Fall")