John (Secret Service)

Agent John was a Secret Service agent during Day 5.

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 made several other minor appearances.