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Season 1 of the CBS series Watson premiered on January 26, 2025, immediately following the AFC Championship Game, marking the network’s latest attempt to modernize Arthur Conan Doyle's legendary stories. The show will air weekly at 9 pm ET, starting February 16, and will stream on Paramount+ the day after broadcast.
Created by Craig Sweeny, known for his work on Elementary, the show reimagines Dr. John Watson’s life after the apparent death of Sherlock Holmes, blending medical drama with detective elements.
The first season consists of 13 episodes, with the pilot directed by Larry Teng, who also serves as an executive producer alongside Morris Chestnut.
The series follows Dr. John Watson, played by Chestnut, as he relocates to Pittsburgh and opens the Holmes Clinic, named in honor of his late partner.
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Specializing in bizarre and undiagnosed medical conditions, Watson’s team tackles challenging cases while he confronts lingering grief and a resurfacing threat from his past: Moriarty.
The show also delves into Watson’s recovery from a traumatic brain injury sustained during Holmes’ final moments.
Filmed primarily in Vancouver with additional scenes in Pittsburgh, Watson features a score by Paul Leonard-Morgan.
Its worldwide debut occurred at MIPCOM Cannes in October 2024, building anticipation for its official CBS release.
Main cast members of Watson season 1
1) Morris Chestnut as Dr. John Watson
Morris Chestnut stars as Dr. John Watson, a skilled internist and clinical geneticist navigating life without his iconic partner, Sherlock Holmes. Watson relocates to Pittsburgh and establishes the Holmes Clinic, using money left to him by Holmes.
The clinic specializes in rare and mysterious medical conditions, allowing Watson to use his signature deductive reasoning in a new context. Chestnut brings depth to Watson’s struggle with grief over Holmes’ death and his determination to find out if Moriarty is still alive.
Watson’s professional life often clashes with his personal one, particularly with his ex-wife, Mary, who serves as the clinic’s medical director.
2) Eve Harlow as Dr. Ingrid Derian
Eve Harlow plays Dr. Ingrid Derian, a neurologist with a sharp intellect and an enigmatic past. Ingrid is as brilliant as she is unapproachable, often clashing with her colleagues due to her unconventional methods and aloof demeanor.
Her expertise in neurology proves crucial for the clinic’s most baffling cases, though her stony personality makes it difficult for others to connect with her.
Despite her guarded nature, Watson values her clinical insights and her ability to think outside the box. Harlow portrays Ingrid as a mysterious yet essential member of the team, hinting at layers to her backstory that will likely unravel as the series progresses.
3) Rochelle Aytes as Dr. Mary Morstan
Rochelle Aytes plays Mary Morstan, Watson’s ex-wife and the medical director of the Holmes Clinic. Mary is a highly respected surgeon known for her practical and grounded approach to medicine.
Though their marriage ended due to Watson’s obsession with his work alongside Holmes, Mary remains a vital part of his life.
She often serves as the voice of reason, challenging Watson’s more unorthodox decisions and keeping the clinic running smoothly.
Aytes portrays Mary as compassionate but firm, navigating her complex relationship with Watson while maintaining her professionalism. Her role adds both emotional weight and structure to the clinic’s operations.
4) Peter Mark Kendall as Dr. Stephens and Dr. Adam Croft
Peter Mark Kendall takes on the dual roles of identical twins Stephens and Adam Croft, specialists in infectious diseases and functional medicine.
Stephens, a graduate of Johns Hopkins, is a reserved workaholic who struggles to connect with others, while Adam, a Boston University alumnus, is outgoing and personable.
The contrasting personalities of the brothers add a unique dynamic to the clinic, with Stephens often focusing solely on facts and data while Adam takes a more holistic, patient-centered approach.
Kendall’s portrayal of both characters showcases the twins’ differences and their shared dedication to solving complex medical mysteries.
5) Ritchie Coster as Shinwell Johnson
Ritchie Coster plays Shinwell Johnson, a former criminal from London who now works as the administrative aide at the Holmes Clinic.
Shinwell’s connections in the criminal underworld and his ability to navigate shady networks often provide valuable information for Watson’s cases.
He serves as both a confidant and a practical problem solver, helping Watson bridge the gap between his investigative instincts and the medical world.
Coster portrays Shinwell with a mix of streetwise charisma and loyalty, making him an indispensable member of the team. His relationship with Watson reflects a blend of camaraderie and mutual respect.
6) Inga Schlingmann as Dr. Sasha Lubbock
Inga Schlingmann plays Dr. Sasha Lubbock, the clinic’s rheumatology and immunology specialist. Sasha is a brilliant and ambitious doctor torn between her Chinese birth parents and her religious adoptive family from Dallas.
This cultural tug-of-war adds layers to her character, influencing both her personal decisions and professional demeanor.
Sasha’s expertise often helps the team identify rare autoimmune disorders, making her a critical part of the clinic’s success. Schlingmann brings a nuanced performance to the role, balancing Sasha’s internal conflicts with her drive to excel in her field.
Supporting cast members of Watson season 1
- Randall Park as Moriarty: Sherlock Holmes’ archnemesis, whose rumored survival looms over the series.
- Autumn Reeser as Erica: A patient with a mysterious condition in the pilot episode.
- Jonny Coyne as Dr. Elias Brown: A visiting consultant in later episodes.
- Shannon Chan-Kent as Autumn: Erica’s cousin, tied to the case in Episode 1.
- Adrian Holmes as Detective Marcus Hayes: A local Pittsburgh detective assisting Watson on investigative cases.
- Fiona Vroom as Dr. Lily Park: A surgeon occasionally consulting for the clinic.
Watson season 1 episode 2, titled Redcoat, is scheduled to air on CBS on Sunday, February 16, 2025.
