Carlo Barlozzetti, a silly waiter, lives alone in an apartment located across a bank which a Professor and his followers try to robe. While The Professor intends to steal a ring packed with a precious and secret metal alloy guarded in A safety deposit box, his men want to take the money from the safe.
Unfortunately the movie Spia spione is not yet available on HBO Max.
| Writing | Jaime Jesús Balcázar | Story |
| Camera | Fausto Rossi | Director of Photography |
| Directing | Bruno Corbucci | Director |
| Camera | Juan Gelpí | Director of Photography |
| Editing | Franco Attenni | Supervising Editor |
| Production | Oreste Coltellacci | Producer |
| Production | Romualdo Buzzanca | Production Secretary |
| Camera | Mario Pastorini | Assistant Camera |
| Writing | Bruno Corbucci | Screenplay |
| Sound | Bruno Canfora | Conductor |
| Sound | Federico Martínez Tudó | Original Music Composer |
| Sound | Mario Ronchetti | Sound |
| Sound | Eugenio Fiori | Boom Operator |
| Costume & Make-Up | Adriana Cassini | Hairstylist |
| Directing | Filiberto Fiaschi | First Assistant Director |
| Writing | Vittorio Vighi | Screenplay |
| Production | Enrique Beltram | Unit Manager |
| Production | Alberto Giommarelli | Unit Manager |
| Production | Enzo Ippolito | Unit Manager |
| Camera | José Climent | Camera Operator |
| Production | Valentín Sallent | Line Producer |
| Writing | Mario Guerra | Screenplay |
| Directing | Federico Canudas | First Assistant Director |
| Editing | Teresa Alcocer | Editor |
| Production | Livio Maffei | Production Manager |
| Camera | Giovanni Ciarlo | Camera Operator |
| Art | Giuseppe Cesare Monello | Assistant Set Decoration |
| Camera | Carlo Tafani | Assistant Camera |
| Costume & Make-Up | Mario Giorsi | Costume Design |
| Art | Nedo Azzini | Set Decoration |
| Camera | Enrico Appetito | Still Photographer |
| Art | Juan Alberto Soler | Production Design |
| Costume & Make-Up | Andrea Riva | Makeup Artist |
