Reparto (por orden de créditos)
Irene Worth
The Duchess of Malfi
William Devlin
Bosola
David King-Wood
Ferdinand, Duke of Calabria
David Markham
Antonio
Elwyn Brook-Jones
The Cardinal of Aragon
Michael Cleveland
Son of the Duchess and Antonio
Gordon Davies
Delio
Edmund Gray
Pescara
Miles Manderson
ACTOR
Kenneth Osbourne
Christopher Page
William Patrick
Roderigo
Barry Phelps
Grisolan
Michael Raghan
Silvio
Judy Tatham
Cariola
Reeve Tyler
John Vere
Doctor