• Don
John of Austria, illegitimate son of
Charles V (
tenor) • Donna Agnes, secretly a Jew, also known as Miriam, John's beloved (
soprano) •
Philip II of Spain, King, legitimate son of Charles/Carlos, disguised as the Count de Santa Fiore, also in love with Agnes (
baritone) • Don Quexada, former Prime Minister (
bass-baritone) • Dorothy, Agnes' servant (
mezzo-soprano) • Chorus • Speaking roles: • Brother Carlos, formerly Charles V of Spain • Don Ruy de Gomes, Philip's Prime Minister • Domingo, Don Quexada's servant • Antonio, Brother Carlos' servant • Jerome, Don Quexada's servant • Don Ferdinand de Valdes,
Grand Inquisitor • Lords in Waiting, Officers,
Alguazils, Monks and Attendants ==Recordings==