Martin Clunes
— Sir Arthur Conan Doyle
Charles Edwards
— Woodie
Arsher Ali
— George
Art Malik
— Rev Shapurji Edalji
Hattie Morahan
— Jean Leckie
Emma Fielding
— Charlotte Edalji
Alan McKenna
— Inspector Campbell
Conleth Hill
— Sergeant Upton
Pearl Chanda
— Maud Edalji
Hilary Maclean
— Connie
Matthew Marsh
— Chief Constable Anson
Timothy Watson
— Ernest 'Willie' Hornung
John Hollingworth
— Dr. Butter
Ciarán Owens
— Harry Bostock
Simon Meacock
— Hayden Price
Nicholas Chambers
— John Bostock
Aaron Chawla
— Young George
Dean Ashton
— Fred Brookes
Michael Hadley
— John Greatorex
Sonia Ritter
— Miriam Bostock
Morfydd Clark
— Mary