The Master Blackmailer
Director Peter Hammond
Cast
Alan Rothwell
Tronson, The Butler
David Mallinson
Colonel Dorking
Hans Meyer
Hebworth (Alias Veitch)
Edward Hardwicke
Dr. John Watson
Norma West
Lady Diana Swinstead
Nickolas Grace
Bertrand
Gwen Ffrangcon Davies
The dowager
Rosalie Williams
Mrs Hudson
Howard Gaye
Lewis, Dorking's Batman
Jimmy Hibbert
Hobbs, The Painter
Jeremy Brett
Sherlock Holmes
Robert Hardy
Charles Augustus Milverton
Colin Jeavons
Inspector Lestrade
Serena Gordon
Lady Eva Blackwell
Sophie Thompson
Agatha