Episode

The Sign of Four

Previous: The Hound of the Baskervilles

Cast
Ian Richardson as Sherlock Holmes
David Healy as Dr. John H. Watson
John Benfield as McMurdo
Cherie Lunghi as Mary Morstan
Moti Makan as Lal Rao
Gordon Rollings as Sherman
Clive Merrison as Bartholomew Sholto
Thorley Walters as Maj. John Sholto
Richard Heffren as Thaddeus Sholto
Joe Melia as Jonathan Small
Merelina Kendall as Mrs. Smith
Michael O'Hagan as Mordecai Smith
John Pedric as Tonga
Darren Michael as Wiggins
Robert Russell as Williams
Terence Rigby as Insp. Layton
Kate Binchy as Maid