Young Sherlock
TV Series • 2026
TV-14
"Think fast. Fight faster."
Sherlock Holmes is a disgraced young man, raw and unfiltered, when he finds himself wrapped up in a murder case that threatens his liberty. His first ever case unravels a globe-trotting conspiracy that changes his life forever.
What viewers say
Viewers who enjoy this Guy Ritchie-style origin story call it fast, fun and twisty, with a stylish look, an energetic pace, and a Moriarty rivalry that works well. Critics and viewers agree it is a loose reinvention of Conan Doyle rather than a faithful adaptation. Criticisms are a convoluted, globetrotting plot that loses focus, a young Sherlock who is told to be brilliant more than shown solving puzzles, some over-the-top moments, and scenes shot so darkly they are hard to see.
Best for: Viewers who want an action-leaning, youthful Sherlock adventure and aren't looking for a classic puzzle mystery.
Summary of public viewer reviews, updated November 2026.
actionadventuremystery
📺 Where to Watch
🎬 Watch Trailer
Trailer hosted on YouTube. Click play to load.
🎭 Cast
Hero Fiennes Tiffin as Sherlock Holmes
Dónal Finn as James Moriarty
Zine Tseng as Princess Gulun Shou'an
Natascha McElhone as Cordelia Holmes
Max Irons as Mycroft Holmes
Holly Cattle as Edie
Ravi Aujla as Professor Kishore Malik
Joseph Fiennes as Silas Holmes