John McClane is a fictional character and the protagonist of the Die Hard film series. He is portrayed by actor Bruce Willis and is known for his tough, resourceful nature. McClane is a New York City police officer who often finds himself in dangerous situations, typically involving terrorists or criminals. Throughout the series, McClane is characterized by his wit, resilience, and determination to protect innocent lives. His iconic catchphrase, "Yippee-ki-yay," has become synonymous with his character. The films showcase his ability to overcome overwhelming odds, making him a beloved action hero in popular culture.