Tom Kirkman is a fictional character from the television series Designated Survivor. He is portrayed by actor Kiefer Sutherland. In the show, Tom is a low-level cabinet member who unexpectedly becomes the President of the United States after a terrorist attack kills everyone above him in the presidential line of succession. As President, Tom faces numerous challenges, including political intrigue, national security threats, and personal struggles. His character is known for his moral integrity and determination to do what is right, often navigating complex situations while trying to maintain his values and lead the country effectively.