Detective John McClane is a fictional character and the protagonist of the Die Hard film series. He is portrayed as a tough, resourceful New York City police officer who often finds himself in dangerous situations. Known for his quick wit and determination, McClane faces various criminals and terrorists while trying to protect innocent lives. Throughout the series, McClane's character is defined by his resilience and ability to improvise under pressure. He often works alone, relying on his instincts and skills to overcome obstacles. His iconic catchphrase, "Yippee-ki-yay," has become synonymous with his character and the action genre.