Young Sherlock – Series Review

Origin stories are tricky, especially when the character in question is one of the most famous literary figures ever created. Since the debut of Sherlock Holmes in the late nineteenth century, countless adaptations have attempted to reinterpret the iconic detective in new ways. Some have modernized him, others have leaned into comedy or action, and many have tried to examine the myth before the legend. The television series Young Sherlock, created by Matthew Parkhill and developed by Peter Harness and Guy Ritchie, takes that familiar premise and pushes it into a thrilling coming-of-age mystery.

Inspired by Andrew Lane’s Young Sherlock Holmes novels, themselves a creative extension of the work of Arthur Conan Doyle, the series follows a 19-year-old Holmes during his time at Oxford University. Here, the future detective is still reckless, emotional, and far from the hyper-controlled genius audiences typically know. Over eight episodes, the series explores Sherlock’s first major investigation, one that grows from a campus mystery into an elaborate conspiracy.

The result is a stylish, entertaining, and occasionally uneven mystery drama that balances youthful energy with classic detective storytelling. While it doesn’t reinvent the Holmes mythology entirely, it offers a compelling early chapter in the life of the world’s most famous sleuth.

The central hook of Young Sherlock is simple but effective: what was Sherlock Holmes like before he became the analytical mastermind audiences recognize? Instead of the composed and calculating figure usually portrayed, the series introduces a messy, impulsive young man trying to find his place in the world.

Hero Fiennes Tiffin steps into the shoes of Holmes with surprising confidence. His Sherlock is arrogant, quick-thinking, and often reckless. He has the brilliance audiences expect but lacks the discipline that defines the character later in life.

The show establishes this immediately. Sherlock is not even a student at Oxford—he’s working as a scout (essentially a servant) thanks to intervention from his older brother, Mycroft Holmes. This status creates an interesting dynamic where Sherlock moves between social classes on campus, gathering information from professors, students, and staff alike.

The story begins with the theft of priceless scrolls connected to The Art of War, which quickly spirals into a murder investigation that threatens Sherlock’s freedom. Framed for a crime he didn’t commit, he must clear his name while untangling a conspiracy involving secret societies, powerful benefactors, and political intrigue.

This premise gives the series strong momentum from the start. The first three episodes alone—“The Case of the Missing Scrolls,” “The Case of the Burnt Photograph,” and “The Case of the Unarmed Man”—lay out a layered mystery that steadily widens in scale.

A good Sherlock Holmes story depends on its supporting cast, and Young Sherlock assembles a compelling group of characters who surround the young detective.

One of the most intriguing additions is James Moriarty, played by Dónal Finn. Traditionally, Moriarty is known as Holmes’s greatest enemy, but here he is introduced as Sherlock’s friend and ally. Their dynamic forms one of the most fascinating aspects of the show. Watching the two brilliant minds collaborate adds tension for viewers who already know where their relationship will eventually lead.

Another standout is Zine Tseng as Princess Gulun Shou’an, a Chinese royal and scholar whose presence at Oxford sets the entire mystery in motion. The character brings both intellectual and physical capability to the story, adding a layer of international intrigue and cultural complexity.

Meanwhile, Sherlock’s family provides emotional grounding. Max Irons portrays Mycroft Holmes as calculating and pragmatic, a man who understands the political realities Sherlock tends to ignore. The Holmes parents—played by Joseph Fiennes and Natascha McElhone—add further depth to Sherlock’s personal history.

Perhaps the most memorable supporting role belongs to Colin Firth as Sir Bucephalus Hodge, a powerful and enigmatic figure whose influence looms large over Oxford’s academic and financial world.

Together, these characters create a web of relationships that keeps the story engaging even when the mystery itself slows down.

One of the show’s strengths is its ability to scale the mystery outward over time. What begins as a campus theft gradually reveals connections to larger geopolitical interests and historical secrets.

This escalation gives the series a cinematic quality that mirrors the tone of many modern Holmes adaptations. The influence of director Guy Ritchie is particularly noticeable in the pacing and visual style. Scenes often move quickly, with bursts of action, clever editing, and stylish camera work that keep the story feeling energetic.

Ritchie’s direction also brings a certain swagger to the series. Holmes’s deductions are often presented through rapid-fire visualizations, quick flashbacks, and energetic dialogue exchanges that capture the thrill of discovery.

However, the show occasionally leans too heavily on spectacle. While the mystery is compelling, the conspiracy elements sometimes feel larger than necessary for an origin story. A quieter, more character-focused approach might have allowed Sherlock’s development to shine even more.

Still, the pacing rarely drags, and the series maintains tension across its eight-episode structure.

What ultimately sets Young Sherlock apart from many Holmes adaptations is its focus on the emotional experiences that shaped the future detective.

The show opens with a haunting childhood memory involving Sherlock’s sister, Beatrice Holmes, whose disappearance casts a shadow over Sherlock’s life. This event adds a personal dimension to the series, hinting at deeper motivations behind his relentless pursuit of truth.

Instead of portraying Sherlock as a purely logical machine, the series explores his insecurities, impulsiveness, and desire to prove himself. His journey is less about solving a puzzle and more about learning discipline, empathy, and responsibility.

Hero Fiennes Tiffin captures this transition well. His performance emphasizes Sherlock’s vulnerability as much as his intelligence, making the character feel more human than many portrayals.

This emotional grounding gives the series genuine weight and ensures that the mystery never feels like the only thing driving the narrative.

Visually, Young Sherlock is a polished and atmospheric production. Oxford’s gothic architecture, candlelit interiors, and fog-filled streets create a strong sense of place.

The series blends Victorian aesthetics with a slightly heightened cinematic flair. Costume design, production design, and music all contribute to an immersive world that feels both historical and modern. The show also sprinkles in clever references to classic Holmes lore, rewarding longtime fans without alienating newcomers. While some plot twists stretch plausibility, the overall tone remains consistent: adventurous, mysterious, and occasionally playful.

Young Sherlock succeeds largely because it understands the appeal of its central character. Instead of presenting a finished genius, it explores the messy and unpredictable path that leads Sherlock Holmes toward greatness.

The show occasionally overcomplicates its conspiracy plot and sometimes prioritizes style over depth. Even so, the combination of strong performances, clever mysteries, and a charismatic lead performance keeps the series consistently engaging.

Hero Fiennes Tiffin proves himself a worthy addition to the long line of actors who have portrayed the legendary detective, bringing youthful energy to a role defined by intellect and composure.

For longtime fans of Sherlock Holmes, the series offers a fresh perspective on a familiar character. For newcomers, it delivers an entertaining mystery with strong characters and plenty of intrigue. By the time the season reaches its final episodes, Young Sherlock has firmly established itself as a promising new chapter in the ever-expanding Holmes universe.