Full Credits
23 members

Todd Armstrong
Jason

Nancy Kovack
Medea

Gary Raymond
Acastus

Laurence Naismith
Argos

Niall MacGinnis
Zeus

Michael Gwynn
Hermes

Douglas Wilmer
Pelias

Jack Gwillim
Aeëtes

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)
Bill Gudgeon
Triton (uncredited)
28 members
Don Chaffey
Director
Phyllis Crocker
Continuity
Dennis Bertera
Assistant Director
Beverley Cross
Screenplay
Jan Read
Screenplay
Apollonios Rhodios
Novel
Charles H. Schneer
Producer
Ray Harryhausen
Associate Producer
Paul Maslansky
Unit Manager
Leonardo Scavino
Unit Manager
John Dark
Production Executive
Jimmy Komisarjevsky
Unit Manager
Wilkie Cooper
Director of Photography
Harry Gillam
Camera Operator
Bernard Herrmann
Original Music Composer
Cyril Collick
Sound Recordist
Red Law
Sound Recordist
Alfred Cox
Sound Editor
Bernard Herrmann
Conductor
Geoffrey Drake
Production Design
Herbert Smith
Art Direction
Jack Maxsted
Art Direction
Tony Sarzi-Braga
Art Direction
James Wines
Title Designer
Ray Harryhausen
Visual Effects
Maurice Rootes
Editor
Apollonios Rhodios
Poem
Eddie Powell
Stunts