Maruchi Fresno

Isabel of Aragón

António Vilar

Dinis, King of Portugal

Luis Peña

Nuño de Lara

Fernando Rey

Infante Alfonso

José Nieto

Vasco Peres, the alderman

María Martín

Blanca

Juan Espantaleón

Pedro, the priest

Fernando Fernández de Córdoba

Pedro III de Aragón

María Asquerino

Leonor

Virgilio Teixeira

Alfonso Sánchez

Milagros Leal

Doña Betaza

Gabriel Algara

Juan Velho

Barreto Poeira

Álvaro, the squire

Julieta Castelo

Doña María Ximénez

Carmen Sánchez

Doña Constanza

Emilio G. Ruiz

Infante Pedro

Manuel Guitián

Ramiro

Joaquina Almarche

María de Molina

Rafael Luis Calvo

Fernán Ayres

José Prada

Martín Gil

Manrique Gil

Don Juan Manuel

Félix Fernández

Barredo

Joaquín Puyol

José Franco

Froilas

Luisa España

Isabel as a child

Santiago Rivero

Julio F. Alymán

Francisco Hernández

Villafranca

Elvira Real

Mercedes Castellanos

María (uncredited)

Alfonso de Córdoba

Juan (uncredited)

Fernando Fresno

Físico (uncredited)

José Jaspe

Estevao (uncredited)