In 1922, Infantry Captain Fernando Salas, arriving from Madrid, joins, without much enthusiasm, a battalion ruled by Commander Almendro, a tough veteran of the African war who soon notices a clear lack of military vocation in the new recruit.
| Actor | Role |
|---|---|
 Julio PeñaCapitán Fernando Salas | Capitán Fernando Salas |
 Nani FernándezAlicia Almendro | Alicia Almendro |
 José BódaloComandante Almendro | Comandante Almendro |
 Adriano RimoldiCapitán Suárez | Capitán Suárez |
 Rafael CalvoCoronel | Coronel |
 Tony LeblancValverde | Valverde |
 Sara MontielMaría Luisa Pereira | María Luisa Pereira |
 Carlos Díaz de MendozaCapitán Montero | Capitán Montero |
 Conrado San MartínAbelardo Sánchez | Abelardo Sánchez |
| CCarmen Oliver CobeñaNot listed | Not listed |
| CCarlos Martínez de TejadaNot listed | Not listed |
 José PradaGeneral | General |
 Antonio AlmorósNot listed | Not listed |
| MMiguel MirandaNot listed | Not listed |
| JJoaquín PuyolNot listed | Not listed |
 Rafael Romero MarchentNot listed | Not listed |
 Mercedes CastellanosNot listed | Not listed |
 Pablo Álvarez RubioNot listed | Not listed |
| AAlfonso ManzanaresNot listed | Not listed |
| SSalín ArévaloNot listed | Not listed |
 Francisco RabalTostado (uncredited) | Tostado (uncredited) |