Brian Pierson

Brian was a CTU officer active during Day 2.

Day 2
As Jack Bauer left CTU Los Angeles with Kate Warner without permission, Brian quickly slipped him the keys to and location of a vehicle. Brian slipped away, and immediately afterward, Jack had to knock down Tony Almeida who tried to stop him.

Background information and notes

 * Though the character was named by Jack, Brian Durkin was only credited for playing a "CTU Officer".