Jack Slater is a fictional character and the protagonist of the 1993 action-comedy film, Last Action Hero. He is portrayed by actor Arnold Schwarzenegger and is a tough, heroic cop in a fictional movie universe. Jack is known for his larger-than-life persona and his ability to overcome impossible odds. In the film, Jack is transported from his action-packed world into the real world through a magical movie ticket. This unique twist allows him to confront the differences between his cinematic life and reality, leading to humorous and thrilling situations as he battles villains and seeks to return home.