| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alfred Cox | Crew | Sound | Sound Editor |
Apollonios Rhodios | Crew | Crew | Poem |
 Bernard Herrmann | Crew | Sound | Original Music Composer, Conductor |
Beverley Cross | Crew | Writing | Screenplay |
 Charles H. Schneer | Crew | Production | Producer |
Cyril Collick | Crew | Sound | Sound Recordist |
 Don Chaffey | Crew | Directing | Director |
 Eddie Powell | Crew | Crew | Stunts |
Geoffrey Drake | Crew | Art | Production Design |
Harry Gillam | Crew | Camera | Camera Operator |
Herbert Smith | Crew | Art | Art Direction |
Jack Maxsted | Crew | Art | Art Direction |
Jan Read | Crew | Writing | Screenplay |
Jimmy Komisarjevsky | Crew | Production | Unit Manager |
John Dark | Crew | Production | Production Executive |
 Leonardo Scavino | Crew | Production | Unit Manager |
Maurice Rootes | Crew | Editing | Editor |
Paul Maslansky | Crew | Production | Unit Manager |
 Ray Harryhausen | Crew | Production | Associate Producer, Visual Effects |
Red Law | Crew | Sound | Sound Recordist |
Wilkie Cooper | Crew | Camera | Director of Photography |
Tony Sarzi-Braga | Crew | Art | Art Direction |
Phyllis Crocker | Crew | Directing | Continuity |
James Wines | Crew | Art | Title Designer |
Dennis Bertera | Crew | Directing | Assistant Director |
 Andrew Faulds | Cast | Actor | Phalerus |
Davina Taylor | Cast | Briseis (uncredited) | |
 Douglas Wilmer | Cast | Actor | Pelias |
 Ennio Antonelli | Cast | Actor | Dmitrius, Drummer on Argo (uncredited) |
 Ferdinando Poggi | Cast | Actor | Castor of Sparta (uncredited) |
 Gary Raymond | Cast | Actor | Acastus |
Harold Bradley | Cast | Guard in Palace (uncredited) | |
 Honor Blackman | Cast | Actress | Hera |
 Jack Gwillim | Cast | Actor | King Aeetes |
 John Cairney | Cast | Actor | Hylas |
 John Crawford | Cast | Actor | Polydeuces (uncredited) |
 Laurence Naismith | Cast | Actor | Argos |
 Michael Gwynn | Cast | Actor | Hermes |
 Nancy Kovack | Cast | Actress | Medea |
 Niall MacGinnis | Cast | Actor | Zeus |
 Nigel Green | Cast | Actor | Hercules |
 Patrick Troughton | Cast | Actor | Phineas |
 Tim Turner | Cast | Actor | Jason (voice) (uncredited) |
 Todd Armstrong | Cast | Actor | Jason |
Aldo Cristiani | Cast | Lynceus (uncredited) | |
Doug Robinson | Cast | Actor | Eupaemus (uncredited) |
Eva Haddon | Cast | Actress | Medea (voice) (uncredited) |
| Person | Type | Job | Role(s) |
