John (Secret Service)

Agent John was a Secret Service agent during Days 2, 5, and 6.

Day 2
Agent John assisted another agent when NSA officer Eric Rayburn was removed by President David Palmer. He reassigned someone else to Rayburn's station while Rayburn himself was escorted away to be fired.

Day 5
When First Lady Martha Logan recalled that David Palmer was supposed to inform her of sensitive information, and that he might have been assassinated for planning their meeting, she ran to alert her husband, President Charles Logan, even though he was in the middle of a press conference. Agent North was ordered by Walt Cummings at 7:30:18 to call John, and tell him not to permit her to reach the stage. John intercepted her outdoors and was barely able to keep her at bay. She angrily called him a "stormtrooper" when Mike Novick and Cummings arrived.

Agent John was also present when Jack Bauer and Aaron Pierce offered to turn themselves in to President Logan for interrogating Cummings without authorization. Later, John was among the agents who assisted Federal Marshal Holtzman during the arrest of President Logan.

Day 6
Agent John, another agent, and Lisa Miller escorted Tom Lennox to the office of Vice President Noah Daniels in the Presidential Emergency Operations Center at roughly 6:15pm. Daniels excused the agents to discuss the failed conspiracy to assassinate Wayne Palmer with Lennox.

Agent John assisted White House Chief of Staff Tom Lennox, Agent Hollister, and other Secret Service agents in a field operation in which Lisa Miller was planted to give false information to Mark Bishop, so he could pass it to his Russian informant. When Lisa lost control and attacked Bishop, Lennox and the agents barged in. Bishop then transferred the data, but Russians were watching the room and knew that Bishop was selling lies at that point.