Who are the characters in the banquet movie?

In the film "The Banquet," key characters include the elegant and politically savvy Empress, who navigates a web of deceit and betrayal; the ambitious and scheming Crown Prince, who seeks power; and the mysterious and enigmatic assassin, who plays a crucial role in the unfolding drama. Additionally, the Empress's loyal confidant and various courtiers contribute to the intricate dynamics of court life. The interplay between these characters drives the narrative, filled with intrigue and tension.