1973-03-19 • 50 min
In turn-of-the-century Vienna, Dagobert Trostler investigates a poison pen case.
Ronald Lewis
Dagobert Trostler
Nicola Pagett
Countess Nadja
Carolyn Jones
Countess Tildi Leys
Michael Aldridge
Archduke Othmar
Francis de Wolff
Walter Frankenburg
Harold Kasket
Dr. Heinrich Weinlich
Bill Horsley
Herr Wiegand
Dennis Thorne
Berthold
Brian Protheroe
Deubner
Alan Cullen
British Ambassador
Dennis Vance
Director
Anthony Steven
Writer
Harry Moore
Script Editor
