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