Young Sherlock is an upcoming television series set to release on Prime Video. The series is an adaptation of Andrew Lane's Young Sherlock Holmes book series, itself a pastiche of Arthur Conan Doyle's original Sherlock Holmes stories. Hero Fiennes Tiffin, Joseph Fiennes, Max Irons, Zine Tseng, Colin Firth and Dónal Finn will star in the series. The role of Holmes Holmes will be played by the twenty-six year old Hero Tiffin.