Henry Powell

Henry Powell was a computer consultant working at the Rockland Building. He was a former employee at the defense contractor McLennan-Forster, and still freelanced for the company. He also helped Habib Marwan in his plot to install the Dobson Override device.

Before Day Four
Two months prior to the meltdown date, Powell attended a Heritage Foundation dinner at the Hyatt in Los Angeles. He met with Audrey Raines, and found out when she would be returning to Los Angeles with her father, Secretary of Defense James Heller.

Day Four
During Day Four, Powell kept in contact with Marianne Taylor at CTU. He also made a few calls to Dina Araz, another one of Marwan’s underlings.

Powell went to Omar’s warehouse in the Santa Clarita Valley to pick up the briefcase containing the Override. Although Audrey recognized him, Powell was assured that she would die, and he left for the Rockland Building. He got a worker named Ali to install the device in IDS Systems - their hardware could be used to download the virus into the nuclear reactors.

When Heller’s execution was stopped by Jack Bauer, Powell realized that Audrey could identify him from the dinner. He called Marianne, who told him that Jack and Audrey were heading for Felsted Security in Burbank, because Audrey couldn't remember his name, but remembered that he'd been at the dinner, and since the company had taken surveillance of the dinner, Jack needed her to identify him from the camera surveillance. Powell arranged for a group of men to kill Jack and Audrey at Felsted, and told Marianne to divert suspicion away from herself, since there would be an internal investigation once the two were dead. The attack failed, however, and Jack and Audrey escaped, with the help of Tony Almeida. Powell ordered Marianne to stay at CTU, since leaving might arouse suspicion, and an interrogation might point back to him.

Though all air traffic had been grounded, Powell used special ordinates from McLennan-Forster, and was able to get clearance for a helicopter in Van Nuys to take him out of Los Angeles. When he arrived at the helipad, however, he found that the clearance had been superceded by the Department of Defense. Knowing that Audrey or Secretary Heller was behind this, he ordered the pilot, at gunpoint, to fly him out. The pilot reluctantly agreed, but Jack and Tony arrived just in time to stop the chopper from taking off. As he was being taken into custody, Powell attempted to bribe them, but to no avail. Before Tony and Jack could secure Powell in their car, he was killed by one of Marwan’s snipers from a nearby building.