Characters played by Mel Ferrer
El Greco (Domenico Teotocopulo)
Characters played by Rosanna Schiaffino
Jeronima de las Cuevas
Characters played by Adolfo Celi
Don Miguel de las Cuevas
Characters played by Mario Feliciani
Nino de Guevara
Characters played by Franco Giacobini
Francisco
Characters played by Renzo Giovampietro
Brother Felix
Characters played by Ángel Aranda
Don Luis
Characters played by Nino Crisman
Diego de Castillo
Characters played by Gabriella Giorgelli
Maria
Characters played by Giulio Donnini
Pignatelli
Characters played by Fernando Rey
Felipe II
Characters played by Rafael Rivelles
Marquis of Villena
Characters played by John Karlsen
Prosecutor
Characters played by John Francis Lane
De Agueda
Characters played by Rossana Martini
Zaida
Characters played by Maria Marchi
Mother Superior
Characters played by Franco Fantasia
Fencing Master
Characters played by Andrea Bosic
Prosecutor
Characters played by Bruno Scipioni
Officer
Characters played by Rosi Di Pietro
Isabel
Characters played by Giuliano Farnese
Master of Arms
Characters played by Mary Di Pietro
Isabel
Characters played by Víctor Israel
Mental Patient