The Crown Prince of Adarlan, characterized by his charm and intelligence, who develops a significant relationship with Celaena and struggles with his role in his father's oppressive regime.

The Captain of the Guard, who is loyal and duty-bound, finds himself caught in a tangle of emotions concerning Celaena and navigates complex moral challenges.

A princess from the kingdom of Eyllwe, noted for her bravery and loyalty, who forms a close friendship with Celaena while harboring her own motives.

A powerful and manipulative figure working within the King of Adarlan's court, involved in dark schemes throughout the story.

The tyrant ruler known for his oppressive actions and influence over the kingdom, whose presence looms over the characters and plot.

A noblewoman seeking power and social standing, whose ambitions entangle her in dangerous plots within the court.

The formidable and sinister Champion with supernatural strength, serving as a significant threat to Celaena and others in the competition.

One of the competitors in the King's tournament, who forms an unexpected bond with Celaena during the competition.