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)