PHILIP THE SECOND, King of Spain.
DON CARLOS, Prince, Son of Philip.
ALEXANDER FARNESE, Prince of Parma.
MARQUIS DE POSA.
DUKE OF ALVA.

Grandees of Spain:
COUNT LERMA, Colonel of the Body Guard,
DUKE OF FERIA, Knight of the Golden Fleece,
DUKE OF MEDINA SIDONIA, Admiral,
DON RAIMOND DE TAXIS, Postmaster-General,

DOMINGO, Confessor to the King.
GRAND INQUISITOR of Spain.
PRIOR of a Carthusian Convent.
PAGE of the Queen.
DON LOUIS MERCADO, Physician to the Queen.
ELIZABETH DE VALOIS, Queen of Spain.
INFANTA CLARA FARNESE, a Child three years of age.
DUCHESS D'OLIVAREZ, Principal Attendant on the Queen.

Ladies Attendant on the Queen:
MARCHIONESS DE MONDECAR,
PRINCESS EBOLI,
COUNTESS FUENTES,

Several Ladies, Nobles, Pages, Officers of the Body-Guard, and mute Characters.