Derek Deadman in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox and John Westbrook in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox in Dr. Watson and the Darkwater Hall Mystery (1974)

Christopher Cazenove and Elaine Taylor in Dr. Watson and the Darkwater Hall Mystery (1974)

Terence Bayler, Anthony Langdon, and John Westbrook in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox and Anthony Langdon in Dr. Watson and the Darkwater Hall Mystery (1974)

Christopher Cazenove in Dr. Watson and the Darkwater Hall Mystery (1974)

Anthony Langdon in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox and Christopher Cazenove in Dr. Watson and the Darkwater Hall Mystery (1974)

Jeremy Clyde and Elaine Taylor in Dr. Watson and the Darkwater Hall Mystery (1974)

Elaine Taylor and John Westbrook in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox, Christopher Cazenove, and Elaine Taylor in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox and Carmen Gómez in Dr. Watson and the Darkwater Hall Mystery (1974)

Jeremy Clyde and John Westbrook in Dr. Watson and the Darkwater Hall Mystery (1974)

Carmen Gómez in Dr. Watson and the Darkwater Hall Mystery (1974)

Jeremy Clyde in Dr. Watson and the Darkwater Hall Mystery (1974)

Anne Cunningham and Anthony Langdon in Dr. Watson and the Darkwater Hall Mystery (1974)

Dr. Watson and the Darkwater Hall Mystery

Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox and Marguerite Young in Dr. Watson and the Darkwater Hall Mystery (1974)

Terence Bayler in Dr. Watson and the Darkwater Hall Mystery (1974)

Edward Fox and Elaine Taylor in Dr. Watson and the Darkwater Hall Mystery (1974)

Elaine Taylor in Dr. Watson and the Darkwater Hall Mystery (1974)