A dangerous criminal group wants to destroy St. Peter's Basilica and the secret agent James Tont is the only one who can help it.
| Directing | Bruno Corbucci | Director |
| Production | Ermanno Donati | Producer |
| Art | Aurelio Crugnola | Production Design |
| Camera | Alessandro D'Eva | Director of Photography |
| Writing | Antoinette Pellevant | Screenplay |
| Writing | Bruno Corbucci | Screenplay |
| Writing | Vittorio Vighi | Screenplay |
| Editing | Ornella Micheli | Editor |
| Sound | Bruno Canfora | Original Music Composer |
| Directing | Donatella Morandi | Script Supervisor |
| Production | Luigi Carpentieri | Producer |
| Writing | Ermanno Donati | Screenplay |
| Writing | Luigi Carpentieri | Screenplay |
| Writing | Mario Guerra | Screenplay |
| Writing | Ermanno Donati | Story |
| Writing | Luigi Carpentieri | Story |
| Directing | Marcello Crescenzi | First Assistant Director |
| Directing | Jacques Henri Barratier | First Assistant Director |
| Camera | Giovanni Ciarlo | Camera Operator |
| Costume & Make-Up | Guglielmo Bonotti | Makeup Artist |
| Costume & Make-Up | Anna Fabrizzi | Hairstylist |
| Editing | Ada Grimaldi | Assistant Editor |
| Sound | Vittorio Massi | Sound |
| Production | Giuseppe Francone | Production Assistant |
| Production | Ennio Di Meo | Unit Manager |
| Costume & Make-Up | Franco Loquenzi | Costume Design |
