Hero Fiennes Tiffin, known for his role as Hardin Scott in the “After” film series, has taken on a significant new challenge as he portrays the legendary character of Sherlock Holmes in Guy Ritchie’s latest adaptation, “Young Sherlock.” This series is now available for streaming on Prime Video, with all eight episodes released simultaneously.
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In a recent interview at a special screening held in New York City, the 28-year-old actor opened up about how he prepared for this iconic role. Surprisingly, Fiennes Tiffin noted that the transformation he underwent was more subtle than one might expect. He revealed that he was instructed to take a break from the gym to avoid becoming overly muscular, which could detract from the character of a youthful, 19-year-old Sherlock.
Fiennes Tiffin opted to stay fit by engaging in his preferred sports: football and golf. He even participated in The Soccer Tournament twice, playing for his beloved team West Ham in both 2023 and 2025. Additionally, in September 2025, he took part in the celebrity golf event at the BMW Pro-Am held at Wentworth, further demonstrating his athleticism as he stepped into the role of Sherlock.
Although he didn’t undergo extensive physical training, Fiennes Tiffin embraced the action-oriented aspects of the character. He expressed a desire to perform many of his own stunts during filming, stating, “We’re really lucky to have a great stunt team, and I kind of did as much of it as I was allowed to.” However, he also acknowledged the necessity of trusting the professionals for the more complex stunts, citing moments when director Guy Ritchie advised him to let the stunt team take over for safety and technical expertise.
“Young Sherlock” marks Fiennes Tiffin’s first lead role in a television series and features a unique familial connection, as he stars alongside his uncle, fellow actor Joseph Fiennes. Joseph, renowned for roles in “The Handmaid’s Tale” and “Shakespeare in Love,” plays the role of Silas Holmes, Sherlock’s father. The notion of acting alongside his uncle brought a blend of excitement and anxiety for Fiennes Tiffin, who admitted to feeling initial nerves about the familial dynamics. He noted that this nervousness could translate well into his performance—perfectly aligning with Sherlock’s own pressures in scenes with his father.
Growing up in London, Hero had always admired the Sherlock Holmes franchise. Reflecting on his childhood enthusiasm, he described his journey towards becoming Sherlock as “surreal.” He remarked on wanting to savour the experience of promoting the series, noting, “I just want to soak it up.”
Fiennes Tiffin also revealed that he felt a considerable weight of expectation attached to the role. As a lifelong fan, he understands the critical scrutiny that can accompany adaptations of such iconic characters. “I won’t lie, I felt the pressure,” he admitted. “As a fan, I’d be ready to criticize anyone who brings the role to life, so there was definitely a mixture of nerves intertwined with excitement.”
As “Young Sherlock” debuts to audiences, viewers can expect a fresh take on the legendary detective, combined with the youthful energy that Fiennes Tiffin brings to the character. His unique interpretation promises to resonate with both long-time fans of the Holmes stories and newcomers alike.
The series, now streaming on Prime Video, invites fans to immerse themselves in a reimagined narrative of one of literature’s most enduring figures. Audiences can look forward to seeing how Fiennes Tiffin’s portrayal shapes the beloved character and influences the future of Sherlock Holmes adaptations.