| Person | Type | Job | Role(s) |
|---|---|---|---|
 Angelo Francesco Lavagnino | Crew | Sound | Music |
 Antonio Leonviola | Crew | Directing | Director |
Antonio Modica | Crew | Camera | Camera Operator |
 Carlo Lizzani | Crew | Writing | Screenplay |
 Carlo Ponti | Crew | Production | Producer |
Cleofe Conversi | Crew | Editing | Assistant Editor |
 Dino De Laurentiis | Crew | Production | Producer |
 Ennio De Concini | Crew | Writing | Screenplay |
 Flavio Mogherini | Crew | Art | Art Direction |
 Franco Brusati | Crew | Writing | Screenplay |
Giorgio Giovannini | Crew | Art | Set Designer |
Guido Malatesta | Crew | Directing | Script Supervisor |
Mario Parapetti | Crew | Camera | Camera Operator |
Renato Cinquini | Crew | Editing | Editor |
Renzo Avanzo | Crew | Directing | Assistant Director |
Riccardo Pallottini | Crew | Crew | Cinematography |
Marc-Antonio Bragadin | Crew | Writing | Screenplay |
Gian Giacomo Cossa | Crew | Writing | Screenplay, Assistant Director |
Amelio Verona | Crew | Sound | Sound |
Thea Boggiatto | Crew | Costume & Make-Up | Makeup Artist |
Milena Splendore Pulejo | Crew | Directing | Script Supervisor |
Victor De Santis | Crew | Camera | Underwater Camera |
 Andrea Checchi | Cast | Actor | Giorgio |
 Bud Spencer | Cast | Actor | Magrini |
 Cesare Fantoni | Cast | Actor | Ammiraglio a Roma |
 Christian Marquand | Cast | Actor | Paolo |
Dora Calindri | Cast | Madre di Virgilio | |
 Elena Varzi | Cast | Actress | Anna Avanzi |
 Emilio Cigoli | Cast | Actor | Ammiraglio Bragadin |
 Enrico Maria Salerno | Cast | Actor | Virgilio |
 Ettore Manni | Cast | Actor | Marco |
Evar Maran | Cast | Actor | Un superstite |
 Franco Fabrizi | Cast | Actor | Antonio |
Giorgio Capecchi | Cast | (Voice dubbing for Andrea Checchi) | |
Giulio Panicali | Cast | (Voice dubbing for Enrico Maria Salerno) | |
 Giuseppe Rinaldi | Cast | Actor | (Voice dubbing for Bud Spencer/Carlo Pedersoli) |
 Livio Lorenzon | Cast | Actor | Sergente |
Manlio Busoni | Cast | (Voice dubbing for Franco Fabrizi) | |
 Mario Pisu | Cast | Actor | (Voice dubbing for Emilio Cigoli) |
 Nerio Bernardi | Cast | Actor | Capitano Mauri |
Paolo Bergamaschi | Cast | Actor | Un secondo superstite |
 Pino Locchi | Cast | Actor | (Voice dubbing for Christian Marquand) |
 Raf Vallone | Cast | Actor | Carlo Ferri |
 Stefano Sibaldi | Cast | Actor | (Voice dubbing for Franco Farbrizi) |
Giovanni De Fazio | Cast | Pietro | |
 Lydia Simoneschi | Cast | (Voice dubbing for Elena Varzi) | |
Franco Chianese | Cast | Submariner | |
Gualtiero De Angelis | Cast | (Voice dubbing for Ettore Manni) | |
Bruno Persa | Cast | (Voice dubbing for Bud Spencer/Carlo Pedersoli) | |
Gino Anglani | Cast | Agente segreto | |
Albino Morandin | Cast | Capo pontone | |
Federico Scarlatti | Cast | Commandante sommergible | |
Saverio Capriò | Cast | Un terzo superstite | |
| Person | Type | Job | Role(s) |
