Guy Ritchie's Sherlock Holmes Successfully Replaces Robert Downey Jr.

Published Oct 7, 2026, 11:55 AM EDT

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There have been countless on-screen reimaginings of Sherlock Holmes over the decades, but few, if any, have been as endearing as Guy Ritchie and Robert Downey Jr.’s take on literature’s most famous sleuth. 2009’s Sherlock Holmes and 2011’s Sherlock Holmes: A Game of Shadows reinvented the detective as a scruffy, combative action hero without losing the intelligence that defines Arthur Conan Doyle’s original character. Downey’s eccentric performance, paired with Ritchie’s unique directing style, made the pair’s vision of Holmes difficult to replace.

Robert Downey Jr.’s troubled version of the detective was so distinctive that fans have spent well over a decade waiting for him to return. Yet, despite years of development, Sherlock Holmes 3 still hasn’t materialized. Guy Ritchie, however, has finally returned to Conan Doyle’s thanks to Prime Video’s Young Sherlock, which follows Hero Fiennes Tiffin as Sherlock Holmes long before he becomes the legendary Baker Street detective.

Guy Ritchie serves as an executive producer on the series and directed Young Sherlock’s opening two episodes, giving this origin story a creative spiritual connection to his Sherlock Holmes movies. While Fiennes Tiffin’s Holmes isn’t canonically a younger version of Robert Downey Jr’s, he may as well be. As far as personality, energy, and presentation go, both the character and show feel like a prequel to Ritchie and Downey’s Sherlock Holmes in all but name.

Hero Fiennes Tiffin Is The Perfect Robert Downey Jr. Sherlock Holmes Replacement

There is no canonical connection between Young Sherlock and Guy Ritchie’s Sherlock Holmes movies, but the director’s creative fingerprints make the Prime Video series feel surprisingly close to a spiritual prequel to the Robert Downey Jr. films. Both interpretations favor physicality and high-energy chaos over the restrained approach associated with more traditional Sherlock Holmes adaptations. Their Victorian settings are equally exciting and dangerous, while the detective work frequently leads to action and spectacle rather than Holmes pacing around a room explaining his deductions to a group of stunned suspects.

There’s a lot Young Sherlock and the Guy Ritchie Sherlock Holmes movies have in common, but the similarities are clearest in Hero Fiennes Tiffin’s performance. His young Holmes is brilliant but raw, defiant and impulsive, possessing the intelligence to stay several steps ahead while lacking the discipline to make his life remotely orderly or live up to the expectations of his social standing.

Those qualities make it easy to imagine Fiennes Tiffin’s young upstart eventually becoming Robert Downey Jr.’s Sherlock Holmes. Downey’s older detective is likewise restless, socially abrasive, and prone to self-destructive behavior whenever his mind lacks sufficient stimulation. His intellect doesn’t make him composed and calculated but chaotic and restless. Even his formidable fighting ability becomes another outlet for a brain that seemingly never switches off.

All of this is true for Hero Fiennes Tiffin’s version in Young Sherlock, and the show’s interpretation of the character resembles Downey’s Holmes more than he does any other version of the detective. Young Sherlock is telling its own story, but Guy Ritchie has effectively found an actor capable of spiritually carrying the same interpretation in a different continuity. After 15 years without another Downey-led movie, Hero Fiennes Tiffin has emerged as a remarkably satisfying replacement.

Young Sherlock Doesn’t Mean Guy Ritchie Is Walking Away From Sherlock Holmes 3

Guy Ritchie returning to Holmes through Young Sherlock inevitably raised another question: does this mean Sherlock Holmes 3 is effectively dead? A Game of Shadows arrived in 2011, and the third movie has spent the 15 years since passing through various stages of development. With Ritchie now investing in a differen Sherlock Holmes incarnation, it would be easy to see the Prime Video series as his way of moving on.

Fortunately, Guy Ritchie himself suggested otherwise. When asked in a 2026 interview whether he would return for another Sherlock Holmes movie with Robert Downey Jr., the director made his enthusiasm exceptionally clear (via Collider):

“I’d love to. I adore Downey, and I adored making those two movies. Look, I think it’s just honestly a question of just aligning our schedules. I know the appetite for it’s there, but the appetite for it from our side is there, too. So, we’d love to make that happen. I just don’t know how it’s going to happen. It’s amazing that it hasn’t happened.”

There has also been tangible progress on the movie’s development behind the scenes. Writer Chris Brancato confirmed in July 2026 that he has written a draft of Sherlock Holmes 3. The biggest uncertainty appears to be getting the necessary pieces, particularly Downey’s packed schedule, aligned sufficiently for the long-delayed sequel to finally move forward (via The Direct):

“Well, I don't know, that's up to the movie gods. Also, Robert's schedule. Robert has a very, very busy schedule, so I'm hopeful that it will get made. But you know, we have to wait and see how things shake out. You just never know with movies.”

Nothing currently guarantees Sherlock Holmes 3 will happen. However, Young Sherlock clearly does not represent Guy Ritchie abandoning Robert Downey Jr.’s incarnation. If anything, it shows how much creative interest he still has in Arthur Conan Doyle’s detective. Hero Fiennes Tiffin can successfully replace on the small screen without actually replacing him in the movie franchise. For Ritchie, Young Sherlock is an additional Sherlock Holmes project, not a substitute for the unfinished movie trilogy.

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  Hero Fiennes Tiffin

  Sherlock Holmes

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  Dónal Finn

  James Moriarty