| Episode cast overview, first billed only: |
 | Juanjo Puigcorbé | - | Miguel Servet |
 | José Luis Pellicena | - | Calvino |
 | Pepe Soriano | - | Ecolampadio (as José Soriano) |
 | Patrick Bauchau | - | Champier |
 | Jacques Sernas | - | Gaspar Trechsel |
| Magüi Mira | - | Wibrandis |
 | Enrique San Francisco | - | Jutton (as Quique San Francisco) |
 | Mercedes Sampietro | - | Doña Catalina |
 | Javier Loyola | - | Mauguiron |
| Ricardo Lucía | - | Padre Antoine (as Ricardo Lucia) |
| Pep Comas | - | Perelle |
 | Icíar Bollaín | - | Chica anabaptista (as Iciar Bollain) |
 | Fernando Hilbeck | - | Palmier |
| José María Álvarez | - | Anabaptista cojo (as Jose Mª Alvarez) |
| Eduardo MacGregor | - | Frellon (as Eduardo McGregor) |
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