Adaptation of the novel by Alejandro Pérez Lujín, centered on the university adventures in Santiago de Compostela of Gerardo Roquer from Madrid, who stays in a boarding house known as "La Casa de la Troya".
| Actor | Role |
|---|---|
 Armando CalvoGerardo Roquer | Gerardo Roquer |
 Rosario GranadosCarmiña | Carmiña |
 Ángel GarasaPitouto | Pitouto |
 Carmen MolinaMoncha | Moncha |
 Consuelo Guerrero de LunaDoña Jacinta | Doña Jacinta |
 Luis AlcorizaOctavio Maragota | Octavio Maragota |
 Manolo FábregasPanduriño | Panduriño |
 Miguel ArenasPapá de Gerardo | Papá de Gerardo |
 Eduardo ArozamenaDon Servando | Don Servando |
 José MorcilloDon Ventura | Don Ventura |
 Nicolás RodríguezRafael | Rafael |
| LLuis MussotPapá de Isabel | Papá de Isabel |
 Maruja GrifellTeresa | Teresa |
| PPin CrespoAmante bailarina de Gerardo | Amante bailarina de Gerardo |
 Armando ArriolaCoutiño | Coutiño |
 Alberto CataláNot listed | Not listed |