Young Sherlock Reality TV Guide: Format, Cast and Facts
A TMDB-backed guide to Young Sherlock, including cast, release facts, genres and watch-provider notes.

Young Sherlock (2026) — an evergreen reference for this TV series: the essentials, the cast, where to watch and what to watch next. Think fast. Fight faster.
Where to watch
TMDB's U.S. watch-provider data lists Amazon Prime Video, Amazon Prime Video with Ads. Availability changes by country and date, so check your streaming app before watching.
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
About Young Sherlock
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.
More like Young Sherlock
- Sherlock
- The Lost World
- Goosebumps
- Around the World in 80 Days
- The Iris Affair
- Star Wars: Skeleton Crew
- National Treasure: Edge of History
- War of the Worlds
Figures and availability come from public TMDB data and are provided as a sourced reference.
Frequently asked questions
Where can I watch Young Sherlock?
TMDB's U.S. watch-provider data lists Amazon Prime Video, Amazon Prime Video with Ads. Availability changes by country and date, so check your streaming app before watching.
Who is in the cast of Young Sherlock?
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
Is this Young Sherlock guide official?
No. It uses TMDB data as a reference and is not endorsed or certified by TMDB.



