Young Sherlock

Hero Fiennes Tiffin

Sherlock Holmes

Dónal Finn

James Moriarty

Natascha McElhone

Cordelia Holmes

Zine Tseng

Princess Gulun Shou'an

Max Irons

Mycroft Holmes

Ravi Aujla

Professor Kishore Malik

Holly Cattle

Edie

Purdy Hughes

Young Beatrice

Joseph Fiennes

Silas Holmes

Numan Acar

Esad Kasgarli

Colin Firth

Bucephalus Hodge

Scott Reid

Constable Lestrade

Stephen Agnew

Nathan Burford

Paul Antony-Barber

Professor Charles Thompson

Billy Byers

Young Mycroft

Lucien Guo

Young Sherlock

Iris Li

Mei Yi Liu

Ian Midlane

Professor Ambrose Roberts