Sophie Skelton, Indira Varma, Olivia Williams, Aidan Gillen Join "Young Sherlock"

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"Young Sherlock" Adds Sophie Skelton, Indira Varma, Olivia Williams & Aidan Gillen, Sets Season 2 Returning Cast – See Who’s Not Coming Back
by Nellie Andreeva
July 29, 2026


Prime Video‘s "Young Sherlock" is replenishing its cast ranks as it embarks on a new mystery for Season 2.

Joining Guy Ritchie‘s action comedy-drama as new series regulars are Olivia Williams (Dune: Prophecy), Sophie Skelton (Outlander), Indira Varma (The Night Manager) and Aidan Gillen (Game of Thrones).



They join lead Hero Fiennes Tiffin, who plays the titular character, and fellow returning main cast members Dónal Finn (James Moriarty) as well as Natascha McElhone, Max Irons and Holly Cattle, who play Sherlock’s mother Cordelia, brother Mycroft and sister Beatrice.

Details about new cast additions’ characters are not being revealed.



Not coming back is Season 1’s female lead Zine Tseng, whose character Xiao Wei/Princess Gulun Shou’an saw her arc wrapped nicely in the finale.

Tseng was considered unlikely to return but she had left the door slightly open in interviews.



Also not returning is Joseph Fiennes as Sherlock’s father Silas Holmes who jumped off a cliff in the Season 1 finale and was presumed — but not confirmed — dead.

Further corroborating Silas’ fate is the fact that also gone is Numan Acar who played his fixer Esad Kasgarli in Season 1. (Fellow main cast member Colin Firth’s character Bucephalus Hodge was killed off earlier in the season.)

https://deadline.com/2026/07/young-s...ma-1237006177/