Young Sherlock: Story, Cast and Series Facts

Story and premise

Young Sherlock is touted as an irreverent, action-packed origin story of Sir Arthur Conan Doyle's beloved detective in an explosive re-imagining of this iconic character. At age 19, Sherlock Holmes is disgraced, raw, unfiltered, and unformed, when he finds himself caught up in a murder mystery at Oxford University which threatens his freedom. Diving into his first-ever case with a wild lack of discipline, Sherlock manages to unravel a globe-trotting conspiracy that will change his life forever.

Series details

• Title: Young Sherlock
• Format: Scripted
• Language: English
• Genres: Action, Crime, Mystery
• Premiere date: 2026-03-04
• Status in TVmaze: Running
• Web channel listed by TVmaze: Prime Video
• Typical episode runtime: 49 minutes
• TVmaze community rating: 7.3/10
• TVMaze ID: 77427
• IMDb ID: tt8599532
• TVDB ID: 450633

Cast and credited roles

• Hero Fiennes Tiffin — Sherlock Holmes
• Natascha McElhone — Cordelia Holmes
• Dónal Finn — James Moriarty
• Max Irons — Mycroft Holmes
• Zine Tseng — Princess Gulun Shou'an
• Holly Cattle — Edie
• Joseph Fiennes — Silas Holmes
• Numan Acar — Esad Kasgarli
• Colin Firth — Sir Bucephalus Hodge

Seasons in the TVmaze catalogue

• Season 1: premiered 2026-03-04; final listed air date 2026-03-04; episode order: 8.

Source and licence

Adapted from Young Sherlock on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.