Darien Frey is a fictional character from the novel series "The Darkest Minds" by Alexandra Bracken. He is known for his charm and quick wit, often using humor to navigate difficult situations. Frey is a skilled thief and a member of a group that fights against oppressive forces in a dystopian world. In the series, Frey plays a crucial role in supporting the main characters as they seek freedom and justice. His background and experiences shape his actions, making him a complex character who balances loyalty and self-interest throughout the story.