Mark Gatiss

Sherlock Holmes

Sanjeev Bhaskar

Dr Watson

Ewan Bailey

Barrymore / Mycroft / narrator

Claire Corbett

Mrs Barrymore / Beryl Stapleton / Billy / narrator

Sam Dale

Dr Mortimer / Frankland / narrator

Ryan Early

Henry Baskerville / narrator

Carl Prekopp

Stapleton / Selden / narrator

Emyr Afan