———
Todd Armstrong - JasonNancy Kovack - MedeaGary Raymond - AcastusLaurence Naismith - ArgosNiall MacGinnis - ZeusMichael Gwynn - HermesDouglas Wilmer - PeliasJack Gwillim - AeëtesHonor Blackman - HeraJohn Cairney - HylasPatrick Troughton - PhineasAndrew Faulds - PhalerusNigel Green - HerculesJohn 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)
Ratings
from TMDB7.2/ 10732 votes