What are the differences between Polydectes and Dictys?

Polydectes and Dictys are characters from Greek mythology, specifically associated with the story of Perseus. Polydectes is the king of Seriphos, known for his ruthless ambition and desire to marry Danaë, Perseus's mother, while Dictys is his kind-hearted brother and a humble fisherman who cares for Perseus and Danaë. Polydectes serves as an antagonist, often plotting against Perseus, whereas Dictys acts as a protector and ally. Their contrasting natures highlight themes of tyranny versus compassion in the narrative.