Jason was Medea's husband ( think Jason and the Argonauts). He's a putz essentially, thinking he can just take up with a younger woman when he's already with Medea - who is quite a catch! He is deceptive and only thinking of himself. I made his colors darker to give him a heavier feel than Medea, and his purple cloak represents him trying to worm his way into the royal family by marrying the princess.