Joseph Fiennes has said working with his nephew Hero Fiennes Tiffin for their upcoming TV series was “a real present”, describing him as a “wonderful leading man with such talent”.Fiennes Tiffin, 28, stars as the titular character in upcoming Prime Video series Young Sherlock, based on the novels by Andrew Lane, which follows the origin story of the fictional detective.Fiennes, 55, features in the series as his nephew’s on-screen father, Silas Holmes, and the pair have both said they enjoyed working alongside each other.