Officer 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. McClane is known for his quick thinking, determination, and ability to improvise, making him a formidable opponent against criminals. Throughout the series, McClane faces various threats, including terrorists and organized crime. His character is marked by a strong sense of justice and a willingness to put himself in harm's way to protect others. The role is famously played by actor Bruce Willis, who has become synonymous with the character.