Character Relationship Map: Elementary

Characters

• Sherlock Holmes (played by Jonny Lee Miller) — protagonist

  Modern-day police consultant in NYC who relocated to Manhattan after a fall from grace and drug rehabilitation. He insists on his own post-rehab regimen and works alongside a sober companion. Known fo...

• Joan Watson (played by Lucy Liu) — protagonist

  Former successful surgeon turned sober companion assigned to monitor Sherlock Holmes. Initially skeptical that her addiction expertise applies to him, she accompanies him on cases and gradually discov...

• Marcus Bell (played by Jon Michael Hill) — supporting

  NYPD detective known for sharp intuition and intimidating interrogation skills. Initially skeptical of Sherlock Holmes and his unorthodox methods, he eventually comes to recognize the detective as an...

• Thomas Gregson (played by Aidan Quinn) — supporting

  New York City Police Captain and Sherlock's official police contact. Having previously worked with Sherlock at Scotland Yard, he recognizes his brilliance and officially welcomes him back as part of t...

• Morland Holmes (played by John Noble) — supporting

  Sherlock's wealthy father who forces him to relocate to Manhattan and live with a sober companion following his fall from grace and drug rehabilitation.

• Shinwell Johnson (played by Nelsan Ellis) — supporting
• Dr. Candace Reed (played by Linda Emond) — minor
• Gareth Lestrade (played by Sean Pertwee) — minor
• Mycroft Holmes (played by Rhys Ifans) — minor
• Irene Adler (played by Natalie Dormer) — cameo
• Detective Guzman (played by Chris McKinney) — cameo
• Hannah Gregson (played by Liza J. Bennett) — cameo
• Captain Dwyer (played by Rob Bartlett) — cameo
• Chantal Milner (played by Chasten Harmon) — cameo
• Lin Wen (played by Samantha Quan) — cameo
• Dr. Eugene Hawes (played by Jordan Gelber) — cameo
• Kitty Winter (played by Ophelia Lovibond) — cameo
• Agent Dean McNally (played by Tim Guinee) — cameo
• Odin Reichenbach (played by James Frain) — cameo
• Alfredo Llamosa (played by Ato Essandoh) — cameo

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Sherlock Holmes → Irene Adler (Former lovers) — Their past romance and its apparent loss profoundly shape Sherlock's addiction, grief, and pursuit of Moriarty.

  "Season 1 flashbacks show Sherlock and Irene's relationship. Sherlock believes Irene was murdered, and learning the truth about her staged death and i...

• Sherlock Holmes → Morland Holmes (Father and son) — A deeply strained father-son relationship shaped by control, suspicion, and unresolved grievances, with limited movement toward reconciliation.

  "Morland sends Sherlock to New York and arranges a sober companion in Season 1. Their distrust and conflict intensify around Morland's criminal connec...

• Joan Watson → Dr. Candace Reed (Former therapist and client) — A former therapeutic relationship becomes a personal and professional reason for Joan to investigate Reed's death.

  "Season 6 identifies Dr. Candace Reed as Joan's former therapist, and Joan investigates Reed's murder."

• Sherlock Holmes → Kitty Winter (Mentor and protégé) — Sherlock mentors Kitty in investigative work, while Kitty's independent decisions and later warning demonstrate her growing agency.

  "Sherlock returns to New York in Season 3 with Kitty as his new prot\u00e9g\u00e9. They work with Joan on a murder investigation, and Kitty later retu...

• Sherlock Holmes → Mycroft Holmes (Brothers) — The brothers' relationship combines old resentment and rivalry with cooperation when their investigations and family interests overlap.

  "Mycroft arrives in New York in Season 2, and the brothers' shared history includes conflict over Nigella Mason. They later cooperate around MI6 and i...

• Sherlock Holmes → Marcus Bell (Detective colleagues) — A professional alliance that develops from skepticism into mutual reliance and respect.

  "Bell initially works alongside a skeptical police team, but Sherlock helps clear him when evidence is planted against him in Season 1. They continue...

• Sherlock Holmes → Dr. Candace Reed (Investigators of her murder) — Their relationship is limited to Sherlock's investigation of Reed's death and the evidence surrounding her work.

  "Sherlock and Joan investigate the murder of Joan's former therapist, Dr. Candace Reed, in Season 6."

• Joan Watson → Marcus Bell (Investigative colleagues) — A steady professional partnership based on shared casework and confidence in each other's investigative contributions.

  "Bell and Joan work together on investigations throughout the series. In Season 3, Bell helps Sherlock search for missing zebras, and later seasons sh...

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Sherlock Holmes → Joan Watson (Investigative partners and closest allies) — Their working partnership grows into a durable bond grounded in trust, mutual respect, and shared investigative purpose.

  "Joan begins as Sherlock's sober companion in Season 1, joins his investigations, later runs her own investigative work, and repeatedly returns as his...

• Sherlock Holmes → Odin Reichenbach (Detective and criminal adversary) — Reichenbach's criminal network makes him a major late-series adversary whose reach directly threatens Sherlock's allies and investigations.

  "The Season 7 summaries establish a sustained investigation into Reichenbach's operations, including attempts to identify his agents, protect targets,...

• Joan Watson → Shinwell Johnson (Former patient and trusted contact) — Joan's former therapeutic connection becomes a personal effort to help Shinwell rebuild his life, making his death especially painful.

  "Joan identifies Shinwell as one of her former patients in Season 5, helps him avoid being framed, and takes drastic steps to keep him from being draw...

• Joan Watson → Odin Reichenbach (Investigator and criminal adversary) — Joan's investigative work contributes to the effort against Reichenbach and his organized threats.

  "Joan helps investigate Reichenbach's operations in Season 7, and the finale presents her as a published investigator after his sentencing."

• Sherlock Holmes → Alfredo Llamosa (Sober friend and confidant) — Their friendship is grounded in shared recovery experience and practical, reciprocal support.

  "Alfredo is established as Sherlock's close friend in recovery. Sherlock asks Alfredo to help find Shinwell in Season 5, and Alfredo later asks Sherlo...

• Sherlock Holmes → Shinwell Johnson (Uneasy investigative allies) — Their association shifts from cooperation around Shinwell's rehabilitation and gang ties to Sherlock's response to Shinwell's murder.

  "In Season 5, Sherlock and Joan work with Shinwell, whom Joan previously treated, as he tries to help them identify a poisoned-drug dealer. Sherlock l...

• Joan Watson → Kitty Winter (Investigative allies) — Their alliance develops through casework and Joan's effort to support Kitty after trauma.

  "Joan, Sherlock, and Kitty must learn to work together after Kitty arrives in Season 3. Joan encourages Kitty to attend a support group, and Kitty lat...

Story Analysis

Across seven seasons, the series follows Sherlock and Joan as their investigative partnership grows through criminal cases, family conflicts, recovery, institutional change, and the threats that shape their lives.

Plot Progression

1. Season 1: Partnership and Moriarty — Joan enters Sherlock's life as his sober companion and gradually becomes his investigative partner. Their cases establish Sherlock's relationship with the NYPD, while the revelation about Irene and Mo...
2. Season 2: Family and Intelligence — Mycroft's arrival brings family conflict into Sherlock and Joan's work. The MI6 investigation forces the brothers and Joan into a dangerous alliance against a mole.
3. Season 3: New Roles and Trauma — Joan establishes her own investigative practice while Sherlock returns with Kitty. The team faces a serious criminal threat that tests Kitty's recovery and forces Sherlock and Joan to act as allies an...
4. Season 4: Morland's Power Struggle — Sherlock and Joan work outside their former police arrangement as Morland's organization becomes central to a succession struggle. Family suspicion and criminal power converge in a campaign involving...
5. Season 5: Shinwell and the SBK — Joan tries to help Shinwell move beyond his criminal past while Sherlock works to expose his gang's operations. Shinwell's murder makes the gang conflict personal and pushes the investigation toward a...
6. Season 6: Health and Recovery — Sherlock's post-concussion syndrome challenges his independence and creates new limits on his work. Joan and the wider team provide support as the series continues to explore sobriety, trust, and resp...
7. Season 7: Reichenbach and Farewell — Sherlock and Joan return to New York and confront a far-reaching network of hired agents and threats. Reichenbach's sentencing resolves the central conflict, while Joan's writing and family life mark...