'Young Sherlock' Will Investigate Again in Season 2

'Young Sherlock's got more game afoot with Amazon's announcement that Season 2 is on the way.

Dónal Finn, Natascha McElhone and Hero Fiennes Tiffin in 'Young Sherlock'
Dónal Finn, Natascha McElhone, and Hero Fiennes Tiffin in 'Young Sherlock' (Amazon Studios)

We should probably start bracing for even more Sherlock Holmes revivals, as the current crop of entries are apparently doing ridiculously well. The latest entry, Young Sherlock, based on the YA novels by British author Andrew Lane, has barely been streaming on Amazon's Prime Video for a month, and the service claims it is "in the top 10 for any season of an original series" on the service with 45 million views. With the show a global hit (60% of viewership is apparently from outside the U.S.), Prime has given the green light for Season 2.

(Unlike some other shows, Young Sherlock is being touted as a hit with actual hard data, suggesting this is not hyperbole. However, 60% of viewership outside the U.S. makes one wonder if the show would have been a hit had it been U.S.-release only.)

Conceived and directed by Guy Ritchie, whose Sherlock Holmes films starring Robert Downey Jr. were massive hits, the first season takes Lane's novels, which rewind the clock to the 1860s, when Sherlock was still a prep school student, and ages the character up a bit. Played by Hero Fiennes-Tiffin (Picture This), Holmes is now a university student at Oxford in the early 1870s, where he is befriended by fellow student and future nemesis, James Moriarty (Dónal Finn). It's not quite a reverse Holmes-Watson relationship between the two, with Moriarty as the genius and Holmes learning by example, but the overtones are obvious.

There's no synopsis for Season 2, which isn't that surprising, as Season 1 wasn't all that faithful to the books anyway, and will probably happily forge its own path from here on out.

Dónal Finn, Zine Tseng and Hero Fiennes Tiffin in 'Young Sherlock'
Dónal Finn, Zine Tseng and Hero Fiennes Tiffin in 'Young Sherlock' (Amazon Studios)

Fiennes-Tiffin is confirmed to return for the show's second season in the titular role. Currently, he's the only actor officially announced, but it's pretty safe to assume that Finn (The Wheel of Time) will also return as Moriarty. Other characters who are likely to reprise their roles include Natascha McElhone (Hotel Portofino) as Sherlock's mother, Cordelia; Max Irons (The White Queen) as brother Mycroft Holmes; Holly Cattle (COBRA) as sister Beatrice Holmes; Colin Firth (Pride & Prejudice) as Sir Bucephalus Hodge; Scott Reid (Line of Duty) as Constable Lestrade; and Zine Tseng (3 Body Problem) as Princess Gulun Shou’an.

Lead writer and showrunner Matthew Parkhill will pen Young Sherlock's episodes, with Ritchie confirmed to return to direct the first episode of the second season. Parkhill and Ritche executive produce alongside Simon Kelton, Ivan Atkinson, Simon Maxwell, Dhana Gilbert, Colin Wilson, and Marc Resteghini, with Harriet Creelman co-executive producing.


All episodes of Young Sherlock are currently streaming on Prime Video. Season 2 is not expected to start production until later in 2026, and probably will not arrive until at least 2027.

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