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Jonny Lee Miller as Sherlock Holmes. Holmes is a former Scotland Yard consultant who now lives in New York City after completing drug rehabilitation. He is a
deductive genius with a variety of unusual interests and enthusiasms that assist him in his investigations. Feeling that the more interesting criminal cases are in America, he stays in New York. He contacts an old associate, Captain Thomas Gregson of the New York City Police Department (NYPD), to resume his work as a consulting detective. He is forced by his father to live with Dr. Joan Watson, his "
sober companion" who provides him with aftercare. Miller's Holmes displays many
canonical aspects of
Sir Arthur Conan Doyle's character, while his familial relations, most notably his resentment for his father Morland, have been added into his narrative. In between seasons 2 and 3, Sherlock spends eight months in Britain working for
MI6 and returns to New York in "Enough Nemesis to Go Around" with a new
protégé, Kitty Winter. At the conclusion of season 3, Sherlock suffers a relapse, but his father's connections allow him to resume working for the NYPD. In season 4, Morland reveals that Sherlock's mother, May Holmes, was an opiate addict like him. In the last few episodes of season 5, he is violently assaulted by Shinwell, an aquantance of Joan's, resulting in a severe head injury. He subsequently suffers from severe headaches that affect his concentration and memory, leading to an incident where he is in possession of a severed head, without knowing who the victim was, or if he was the killer, as well as hallucinating about a woman who is based on his mother; the season 6 premiere reveals that he is suffering from
post-concussion syndrome, requiring him to be put on a carefully balanced system of medication, as well as taking on assorted mental activities to try and help his brain heal, albeit hampered by Sherlock's 'need' to use his work to escape his past addictions. By the beginning of season 7, Sherlock is officially recovered, although he notes that one more hit to his head could have serious consequences for his health. In the penultimate episode of the series, following his father's murder at the hands of Odin Reichenbach, Sherlock has a showdown with Reichenbach in which he fakes his death, allowing Reichenbach to be arrested and finally convicted of his numerous crimes some time later. In the series finale, after three years in hiding, he returns after his nemesis / former lover Jamie Moriarty lures him out by making a fake threat against Joan's life. He later opts to stay with Joan as she undergoes cancer treatment, and the two partner up again a year later when she recovers. With 24 episodes per season, by the end of season 2, Jonny Lee Miller became the actor who had portrayed Sherlock Holmes the most times in television and/or film, overtaking
Jeremy Brett (with
41 television episodes) and
Eille Norwood (with
47 silent films). She comes to Holmes when she is hired by his father as his sober companion, to help him remain abstinent after his release from
rehabilitation. After her contracted time is finished, she remains on after lying to Sherlock that his father had continued to retain her services. He gradually comes to value her input and grows to trust her as she helps him come to terms with his life after addiction. Eventually, Sherlock reveals that he found out that Joan is no longer being paid to stay as a companion. He offers her a position as an
apprentice, telling her how much she means to him and how she helps him to focus. Joan accepts and starts her training as a detective with Sherlock. After Sherlock leaves for London, Joan becomes the go-to consulting detective for the 11th Precinct, while also taking on more traditional private investigator-type cases that Sherlock eschews. The two resume working together after Sherlock returns to New York, although Joan takes the occasional case independent of Sherlock. Joan has a brother, Oren, and a half-sister, Lin Wen (née Yun). In the final two seasons, Joan starts to take steps to become a mother, and in the series finale, three years after Sherlock fakes his death, she is revealed to have adopted a son named Arthur. During this time, she has also written and published a book recounting her partnership with Sherlock and continued to consult for the NYPD. Near the end of the episode, she reveals that she has cancer and is starting chemotherapy, prompting Sherlock to stay with her through her recovery. •
Aidan Quinn as
Captain Thomas "Tommy" Gregson. He heads the 11th Precinct. He was previously assigned to
Scotland Yard to observe their
Counter-Terrorism Bureau, where he crossed paths with Sherlock and was impressed with his work. He genuinely likes Holmes, and the two have a mutual respect, with Sherlock describing Gregson as an investigator he both respects and admires, though Gregson admits that Sherlock is a "pain in the ass". In season 2, Gregson separates from his wife of over 20 years, Cheryl, and they are divorced by season 3. In "Rip Off" (season 3, episode 5), it is revealed that his daughter, Hannah (Liza J. Bennett), is an ambitious patrol officer with the 15th Precinct; by season 6, Hannah has been promoted to sergeant. In "Absconded" (season 3, episode 23), Gregson is offered a promotion to Deputy Chief due to the outstanding work of his unit, but despite hints that some higher-ups want him to accept the offer, he decides to remain where he is, as he values his current role and ability to interact with people more than the possibilities offered by the promotion. It is also mentioned in that episode that he was put in charge of the Major Case Squad at age 40. In season 4, Gregson begins dating Paige Cowan, a former detective who quit the NYPD after her unit was accused of taking bribes; they briefly break up after Joan runs into them at a restaurant, as Paige claims she does not want people to think ill of Gregson, even if she was not involved in her unit's actions, but Joan soon learns that Paige actually has
multiple sclerosis and convinces Gregson to give the relationship another chance; the two later marry. During season 6, when Bell contemplates a transfer to the
United States Marshals Service, Gregson observes that Holmes, Watson and Bell make a good partnership because Bell stops them from bending the rules too far when they are conducting investigations. In the beginning of season 7, Gregson is shot and wounded while investigating a
cold case, which leads to the revelation of a conspiracy helmed by social media mogul Odin Reichenbach. In the series finale, it is revealed that he retired from the NYPD a year earlier to spend as much time as possible with Paige, who eventually succumbed to her MS. •
Jon Michael Hill as Detective First Grade/Captain Marcus Bell. Bell is a junior officer with the 11th Precinct with whom Sherlock and Joan prefer working. While initially against the idea of getting help from Sherlock, he comes to recognize Sherlock's abilities and readily takes advice from him. Gregson explicitly observes that Bell is a good partner for Sherlock and Joan as he recognizes when circumstances require them to bend the rules (such as by entering properties of suspects without legal warrants) without letting them break anything that would compromise later court cases. He is briefly reassigned to an observational role in season 2 after sustaining a potentially serious shoulder injury at the hands of a hostile witness Sherlock had questioned earlier; this strains his relationship with Sherlock, but a confrontation with Holmes helps Bell overcome the psychological issues that were hindering his recovery and he soon returns to his old role. In season 4, Bell considers taking the sergeant's exam for the increase in pay to help support his ailing mother. In season 6, Bell is offered a position with the United States Marshals Service and decides to put in an application for transfer upon completing his master's degree. However, he later passes up the job after Sherlock takes the blame for the murder of serial killer Michael Rowan to protect both Joan and Gregson's daughter Hannah from prosecution, and then again when Gregson is shot and critically wounded at the start of season 7 to help investigate the conspiracy. In the series finale, Bell is revealed to have married and become a father, and has been promoted to captain of the 11th following Gregson's retirement. •
John Noble as Morland Holmes (season 4; guest: seasons 6-7). Sherlock's much loathed father arrives in New York after Sherlock suffers a relapse at the end of season 3. He works as an influential business consultant, making arrangements for various companies to achieve their goals regardless of what they might be, with Sherlock describing him as a 'neutral' party in that he has no concern about the consequences of his clients' goals so long as they are achieved. He decides to stay in New York for unknown long-term reasons involving Sherlock, with Joan speculating from independent research that he suffered serious stomach damage from a failed murder attempt two years before, and may believe that he is being targeted again. With a view to resolving the threat, at the end of season 4, he accepts the leadership of the imprisoned Moriarty's organization, intending to dismantle the group from within and thereby shield his son and Joan from any further harm. Morland later returns on two separate occasions: once during season 6, following his older son Mycroft's death, when he and Sherlock mend any remaining fences between them, and then again during season 7, where Sherlock recruits his help to bring down Odin Reichenbach. However, after Morland's machinations cripple Reichenbach's company and nearly result in him being ousted, Reichenbach retaliates by having Morland murdered by one of his own associates, setting the stage for a final showdown with Sherlock. •
Nelsan Ellis as
Shinwell Johnson (season 5). He is a previous patient of Joan's and an ex-convict and gang member for the SBK (South Bronx Killas). He and Joan become acquainted once more when he is released from prison and placed on probation. During his time on probation, Joan helps him settle back into his life outside of prison while also assisting him in his attempt to build a relationship with his daughter. He was briefly an unofficial informant for an FBI agent and is now an official informant for the Bronx Gang Squad. His relationship with Sherlock and Joan falters when Sherlock discovers that Shinwell was responsible for the death of a friend of his during his original time in the SBK, but Shinwell writes a confession for this crime after beating Sherlock in an alley, as he is preparing to bring down the gang, only to be killed by another member of the SBK. (Eight weeks after his death episode aired, Ellis died in Brooklyn at age 39.) •
Desmond Harrington as Michael Rowan (season 6): A recovering addict who becomes impressed with Sherlock's methods of dealing with his addiction and becomes his friend and leaning post as he tackles his post-concussion syndrome. He is later revealed to be a murderer after burying a woman's body in an unknown location; eventually, he is revealed to be a serial killer, who has killed an estimate of more than a dozen women in multiple states, and has credited Sherlock with convincing him to focus on his "work" (i.e., killing) in order to kick his heroin addiction. When Sherlock's health problems diminish his investigative abilities, Michael leaves New York for a time to allow him to recover. He returns near the end of the season where, after he is revealed to have murdered the addict husband of one of his friends years earlier, he attacks Joan, only to flee after being seriously wounded, and is later found dead; the murder is later revealed to have been committed by Gregson's daughter Hannah as retaliation for Michael's earlier killing of her roommate. •
James Frain as Odin Reichenbach (season 7). The renowned tech mogul hires Sherlock and Joan to find who threatened to kidnap his niece. It is soon learned that he made up the claim as a way to test the two, believing that he had found kindred spirits due to their willingness to go the distance to protect the innocent. It is also revealed that he was indirectly responsible for triggering the events that led to Gregson's shooting at the beginning of the season. Odin later reveals to Sherlock his intention to use his enormous resources, both online and offline, to create a system that prevents future crimes by flushing out the would-be-perpetrators and having them killed before they can carry out any offenses. However, despite Reichenbach clearly wanting to do good, Sherlock feels that his system does not work, citing how he killed a bus driver who was ranting on social media about her plans to kill her passengers; a brief study of the woman's media history confirmed that she had made similar rants in the past at the same time of year and never followed through. While presenting himself as willing to listen to Sherlock's input, Reichenbach soon proves himself extremely ruthless in proving that his system works, to the point of having a target and the target's parents killed in a staged murder-suicide (after Sherlock had averted the threat by convincing the target to take a non-violent approach to his problems), and then later having Sherlock's father Morland murdered after the latter assists his son in crippling Reichenbach's company and nearly getting him ousted. The latter action later results in a showdown between the two, wherein Sherlock fakes his murder at Reichenbach's hands in order to finally see him arrested for his crimes. In the series finale, after a lengthy trial, Reichenbach is finally convicted of numerous murders and other crimes related to his conspiracy, and is sentenced to 148 years in prison.
Recurring •
Ophelia Lovibond as Kitty Winter. She is Sherlock's newest protégée, whom he brings from
London after leaving
MI6. She was initially tasked with spying on Watson until being discovered. Sherlock tends to be strict with her but admires her detective skills. Kitty's real name is unknown, as she was kidnapped and raped in London prior to meeting Sherlock and had changed her name in an effort to forget her ordeal. Her character is based on Kitty Winter in Doyle's "
The Adventure of the Illustrious Client". After confronting and disfiguring her rapist, she decides to leave the United States to avoid arrest and to go somewhere where she could use the skills that Sherlock and Watson had taught her. •
Ato Essandoh as Alfredo Llamosa. Sherlock's
NA sponsor is a recovering addict himself. Alfredo is also a reformed expert car thief. He is now paid by various car companies to test their security systems, and he occasionally lets Sherlock try out his own skills on them. Alfredo is one of Sherlock's few real friends, but does not hesitate to criticize Sherlock when he makes a poor decision and pushes him to continue his rehab regimen, including becoming a sponsor himself. He also teaches Joan how to bypass automotive security. Sherlock later 'fires' Alfredo as his sponsor so that he can help him as a friend. •
Rhys Ifans as
Mycroft Holmes. Sherlock's older brother lives in London. He and Sherlock had a very bitter relationship in the past, but Mycroft begins taking steps to reconcile with his brother and becomes good friends with Joan. He owns a chain of restaurants called Diogenes and is an excellent cook. It is later revealed that Mycroft is in the employ of
MI6; it becomes necessary for him to fake his death in "The Grand Experiment", an act that his brother feels shows a lack of faith in Sherlock's ability to find another solution. It is revealed in season 6 that Mycroft has died of a
brain aneurysm. Sherlock briefly grieves for him when he learns of this, regretting not being able to make up with his brother before his death. •
Natalie Dormer as
Irene Adler /
Jamie Moriarty. As Irene, she is the great love of Sherlock's life during his life in Britain. She conceals from him that she is also Moriarty, the brilliant criminal mastermind and leader of a shadowy, powerful worldwide criminal organization. She fakes her death to draw his investigations away from her criminal activities. This causes Sherlock's already established drug use to escalate out of control. Despite Sherlock discovering her true identity and engineering her imprisonment, the two continue to have conflicting feelings for each other – Sherlock noting during a conversation with Bell that "the love of [his] life is an unrepentant homicidal maniac" — and great respect for each other's intellectual powers. She orders her organization not to harm him. She also gains a certain amount of respect for Joan, as the latter's ability to fool her is what gets her arrested; when Joan's life is threatened by drug kingpin Elana March, she arranges the criminal's death in her cell. At the end of Season 4, Morland Holmes takes over her organization with the goal of dismantling it. She plays a major unseen role in the series finale, supposedly plotting against Sherlock, only for it to turn out to be a false alarm. Three years later, Sherlock attends her funeral, although he expresses doubt to Watson that Moriarty is actually dead. Series creator Robert Doherty confirmed in an interview that Moriarty is still alive. •
Sean Pertwee as
Gareth Lestrade. When Sherlock was based in London, he worked with Lestrade, who was then a member of the Metropolitan Police. Due to Sherlock's insistence on working in anonymity (to avoid generating resentment among his colleagues), Lestrade took credit for solving the cases that they worked on together. Lestrade is clearly not in Sherlock's league, and his overzealousness and impulsiveness tend to impair his judgement; however, he is a skilled detective in his own right. •
Robert Capron as Mason. One of Holmes' irregulars, a young tech genius who is often called upon for his computer hacking skills. •
Candis Cayne as
Ms. Hudson. An expert in ancient Greek, she is a
kept woman and muse for various wealthy men. Sherlock allows her to stay at the
brownstone after a breakup, and she subsequently agrees to clean for them once a week as a source of income. Sherlock initially attempts to make Joan pay for the work, as she complains about his messiness, but she refuses and they settle on sharing the expense. Ms. Hudson is seen in single episodes in each of the first three seasons (episodes
19,
45,
55), and mentioned in numerous others through season 4. •
Betty Gilpin as Fiona "Mittens" Helbron. Helbron is a brilliant software engineer for a technology company called Pentillion, known as 'Mittens' in the
hacker community. She is on the
autism spectrum, and is a cat lover (hence her hacker moniker). She is briefly considered a suspect in one case (episode
81), but later assists Sherlock and Joan in their investigation. She later contacts Joan for assistance in another matter, and has a romantic relationship with Sherlock for a while (episodes
84 and
90). •
Jordan Gelber as Dr. Eugene Hawes, M.E. Hawes is a
New York City medical examiner who provides Sherlock and Joan with details relating to murders. He and Sherlock are regular chess partners ("the first Thursday of the month" is mentioned in the episode
"Hounded"). A concealed bomb detonates in the city morgue (
"Down Where the Dead Delight"), severely injuring him and killing the woman he is interested in; as a result, he develops a drug addiction. After noticing the indicators, Sherlock implores him to get help (
"Hounded"). He takes a leave of absence to recover, but returns to active duty in the season 5 episode
"Ill Tidings". •
Tim Guinee as Agent Dean McNally. McNally is an
NSA agent who assists Sherlock and Joan when it benefits the NSA, including arranging Mycroft to fake his death in order betray a MI6 mole. Sherlock later approaches McNally in hopes of finding an ally against Odin Reichenbach, but realizes that McNally and the NSA have sided with Reichenbach. In the series conclusion, it's revealed that McNally was promoted after successfully distancing himself from his involvement with Reichenbach and offers Sherlock the NSA's resources in exchange for continuing to fake his death for the rest of his life. Sherlock rejects the offer in order to support Joan after she is diagnosed with cancer.
Characters from the Sherlock Holmes stories Elementary often has characters who are loosely based on characters from the original
Sherlock Holmes stories by
Sir Arthur Conan Doyle. ==Production==