John Spartan is a fictional character from the 1993 science fiction film Demolition Man, portrayed by actor Sylvester Stallone. He is a tough police officer from the late 20th century who is cryogenically frozen after being convicted for a crime he did not commit. Spartan is known for his strong sense of justice and combat skills. In the film, Spartan is thawed out in a peaceful future society to help capture a dangerous criminal named Simon Phoenix, played by Wesley Snipes. The story explores themes of law enforcement, societal change, and the consequences of a utopian lifestyle, highlighting Spartan's struggle to adapt to a world vastly different from his own.