Directed by
| Don Chaffey | ||
Writing Credits
| Jan Read | ... | (screenplay) & |
| Beverley Cross | ... | (screenplay) |
| Apollonios Rhodios | ... | (poem) (uncredited) |
Cast (in credits order) verified as complete
| Todd Armstrong | ... | Jason | |
| Nancy Kovack | ... | Medea | |
| Gary Raymond | ... | Acastus | |
| Laurence Naismith | ... | Argos | |
| Niall MacGinnis | ... | Zeus | |
| Michael Gwynn | ... | Hermes / Priest | |
| Douglas Wilmer | ... | Pelias | |
| Jack Gwillim | ... | King Aeetes | |
| Honor Blackman | ... | Hera | |
| John Cairney | ... | Hylas | |
| Patrick Troughton | ... | Phineas | |
| Andrew Faulds | ... | Phalerus | |
| Nigel Green | ... | Hercules | |
| Rest of cast listed alphabetically: | |||
 |
Ennio Antonelli | ... | Dmitrius (uncredited) |
|
|
Harold Bradley | ... | Guard in Palace (uncredited) |
| John Crawford | ... | Polydeuces (uncredited) | |
|
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Aldo Cristiani | ... | Lynceus (uncredited) |
| Bill Gudgeon | ... | Triton (uncredited) | |
|
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Eva Haddon | ... | Medea (voice) (uncredited) |
| Ferdinando Poggi | ... | Castor (uncredited) | |
| Doug Robinson | ... | Eupaemus (uncredited) | |
| Skeleton | ... | Self (uncredited) | |
|
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Davina Taylor | ... | Briseis (uncredited) |
| Tim Turner | ... | Jason (voice) (uncredited) | |
Produced by
| John Dark | ... | production executive |
| Ray Harryhausen | ... | associate producer |
| Charles H. Schneer | ... | producer |
Music by
| Bernard Herrmann | ||
Cinematography by
| Wilkie Cooper | ... | (photographed by) |
Film Editing by
| Maurice Rootes | ||
Production Design by
| Geoffrey Drake | ||
Art Direction by
| Jack Maxsted | ||
| Antonio Sarzi-Braga | ... | (as Tony Sarzi Braga) |
| Herbert Smith | ||
Production Management
| Jimmy Komisarjevsky | ... | unit manager |
| Paul Maslansky | ... | unit manager |
| Leonardo Scavino | ... | unit manager (as Leon Lenoir) |
Second Unit Director or Assistant Director
| Dennis Bertera | ... | assistant director |
Art Department
| James Wines | ... | title designer |
| Arthur Hayward | ... | sculptor: moulder (uncredited) |
Sound Department
| Cyril Collick | ... | sound recordist |
| Alfred Cox | ... | sound editor |
| Red Law | ... | sound recordist |
Visual Effects by
| Ray Harryhausen | ... | creator of special visual effects |
| Dorse A. Lanpher | ... | effects assistant animator (uncredited) |
| Dan MacManus | ... | effects animator (uncredited) |
Stunts
| Ralph Faulkner | ... | fight choreographer (uncredited) |
| Ferdinando Poggi | ... | sword fight choreographer (uncredited) |
| Eddie Powell | ... | stunts (uncredited) |
Camera and Electrical Department
| Adolfo Bartoli | ... | lighting technician: uncedit |
| Harry Gillam | ... | camera operator |
| Ray Andrew | ... | clapper loader (uncredited) |
| Adolfo Bartoli | ... | lighting technician (uncredited) |
Editorial Department
| María Luisa Pino | ... | assistant editor (uncredited) |
Music Department
| Bernard Herrmann | ... | conductor: The Royal Philharmonic Orchestra |
Script and Continuity Department
| Phyllis Crocker | ... | continuity |
