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newsTuesday, August 11, 2026·3 min read

Guy Ritchie's Sherlock Prequel Replaces Watson

Guy Ritchie's Sherlock prequel series replaces Watson with Moriarty

Two detectives stand in an interrogation room, holding cups and reflecting on the mission.
Photo: RDNE Stock project

The legendary detective Sherlock Holmes has been adapted countless times for TV and cinema. Recently, Guy Ritchie has gotten in on the action with a prequel show on Prime Video. Although Young Sherlock centers on the title character’s early years, it's the partnership between Sherlock and Moriarty that makes the series a must-watch. The show has replaced the iconic character Watson with Moriarty, played by Dónal Finn, as Sherlock's unlikely partner in investigation.

What happened

The prequel series, Young Sherlock, has been released on Prime Video, offering a new perspective on the character's early years. The show features Hero Fiennes Tiffin as the titular character and Dónal Finn as Moriarty. The series has received positive reviews, with many praising the chemistry between the two lead characters. The show's success can be attributed to its unique take on the Sherlock character, deviating from the traditional Holmes and Watson dynamic. By replacing Watson with Moriarty, the series offers a fresh perspective on the character and his investigative methods. The series also features a strong supporting cast, including Joseph Fiennes, Natascha McElhone, Colin Firth, and Numan Acar. However, it's the partnership between Sherlock and Moriarty that takes center stage, making the series a compelling watch.

Why it matters

The replacement of Watson with Moriarty in the prequel series is significant, as it offers a new perspective on the Sherlock character. The traditional Holmes and Watson dynamic has been done countless times before, and this fresh take is a welcome change. The series' success can be attributed to its ability to deviate from the traditional narrative while still staying true to the character's spirit.

How to think about it

When considering the prequel series, it's essential to think about the character's development and how the replacement of Watson with Moriarty affects the narrative. The series offers a unique take on the character, and it's crucial to approach it with an open mind, considering the possibilities that this new dynamic brings.

+ Pros
  • The series offers a fresh take on the Sherlock character
  • The partnership between Sherlock and Moriarty is compelling
  • The show features a strong supporting cast
Cons
  • The series may not appeal to traditional Sherlock fans
  • The replacement of Watson with Moriarty may be jarring for some viewers
  • The show's success may be limited by its deviation from the traditional narrative

How to think about it

To fully appreciate the series, it's essential to consider the character's development and the implications of replacing Watson with Moriarty. The series offers a unique take on the character, and it's crucial to approach it with an open mind, considering the possibilities that this new dynamic brings.

FAQ

What is the premise of the prequel series?+
The prequel series, Young Sherlock, centers on the title character's early years as an amateur sleuth while attending Oxford University.
Who plays the role of Moriarty in the series?+
Dónal Finn plays the role of Moriarty in the series, serving as Sherlock's unlikely partner in investigation.
How does the series differ from traditional Sherlock adaptations?+
The series differs from traditional Sherlock adaptations by replacing Watson with Moriarty, offering a fresh take on the character and his investigative methods.
Sources
  1. 01Guy Ritchie's Sherlock Prequel Series Has Fully Replaced Watson
  2. 02Guy Ritchie's Sherlock Prequel Series Has Fully Replaced Watson
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