Jack Bauer is a fictional character and the main protagonist of the television series 24. He is portrayed by actor Kiefer Sutherland and is known for his role as a counter-terrorism agent. The series follows Bauer as he navigates various crises, often racing against the clock to prevent terrorist attacks and save lives. The show, which aired from 2001 to 2010, is famous for its real-time format, with each 24-episode season covering 24 hours in Bauer's life. Jack Bauer's character is marked by his resourcefulness, determination, and willingness to make difficult decisions to protect his country.