Juan, the only son of the aristocratic Santa Cruz family, began his law studies at the University of Madrid. Castelar's expulsion from his chair provokes student riots, in one of which Juan is arrested and taken to prison, from which he leaves due to the influence of his family.

• Benito Pérez Galdós
• Mario Camus
• Ricardo López Aranda

• Maribel Martín
• François-Eric Gendron
• Francisco Algora