|Affiliation:||Counter Terrorist Unit|
|Profession:||Field agent, CTU Los Angeles|
|Died:||Day 4: 10:45pm|
Stabbed in neck by Nicole
|Played by:||Dean Cudworth|
|Episode:||"Day 4: 10:00pm-11:00pm"|
Agent Hart was one of the members of the initial field team sent by CTU Los Angeles to the warehouse where Habib Marwan was working from. He prepared alongside the other agents outside but was not part of the actual assault made by Jack Bauer, Lee Castle and their field team.
He then went with Jack Bauer to the apartment of mercenary and ex-Air Force pilot Mitch Anderson. Hart discovered a hard drive with F-117A stealth fighter schematics, which was hidden in a wall by Anderson's deceased former roommate and terrorist associate Aziz. Hart was quickly killed by Nicole, who was posing as FBI Agent Drake and looking for the same hard drive for terrorist leader Habib Marwan. Jack then shot Nicole through a wall and, with the help of Edgar Stiles, reported the information.