 | Edmund Gwenn als Prof. Jorge Serra Hamilton |
 | Valentina Cortese als Eloisa, the Schoolmistress |
 | Juan Calvo als Matías |
 | Franco Fabrizi als Langosta |
 | Félix Fernández als Don Felix |
 | Francisco Bernal als Crescencio |
 | Nicolás D. Perchicot |
 | Mario Berriatúa |
 | María Vico |
 | Isa Ferreiro |
 | Manuel Guitián |
| Casimiro Hurtado |
 | Pedro Beltrán |
 | Manuel Alexandre |
| Manolo García |
 | José Isbert |
 | José Luis Ozores |
| Luis García Berlanga | Director |
| José Luis Jerez | Line Producer |
| Angelo Francesco Lavagnino | Music |
| Jaime Torrens | Sound Designer |
| Guido Guerrini | Music |
| Pepita Orduna | Editor |
| Florentino Soria | Screenplay |
| José Luis Ruiz | Makeup Artist |
| Francisco Sempere | Director of Photography |
| Leonardo Martín | Screenplay |
| Luis García Berlanga | Screenplay |
| Ennio Flaiano | Screenplay |
| Román Calatayud | Set Decoration |
