Midna is a major supporting character in The Legend of Zelda: Twilight Princess. She is the mysterious imp-like princess of the Twilight Realm who initially appears sarcastic, secretive, and self-serving. As the story progresses, she becomes a crucial ally to Link, guiding him through Hyrule and helping him combat the forces of darkness. Her role is central to the plot, and she eventually reveals a more compassionate side as she works to restore balance between the Twilight Realm and the light world.