Charlie Simms is a fictional character from the movie Scent of a Woman, portrayed by Chris O'Donnell. He is a young student at a prestigious military academy who struggles with the pressures of academic and social life. Charlie is depicted as responsible and caring, often trying to do the right thing despite facing difficult choices. In the film, Charlie takes a job looking after Frank Slade, a blind and retired Army officer played by Al Pacino. Their relationship evolves as they embark on a transformative weekend together, leading Charlie to gain valuable life lessons about honor, courage, and the importance of living fully.