D. Davis


 * You may be looking for CTU's Agent Davis, a different Agent Davis, also from Day 5

Davis was a Secret Service agent during Day 5.

Day 5
Toward the close of Day 5, Audrey Raines surmised that Jack Bauer had been kidnapped. The man who had interrupted their reunion was in fact a Chinese agent working for Cheng Zhi. Audrey immediately notified Agent Davis about Jack's disappearance, and Davis quickly began to coordinate a search effort.

Memorable quotes
Audrey Raines: Agent Davis, Jack Bauer's missing.

Agent Davis: Attention all units, we have a missing agent, Jack Bauer... You two men, search the lower levels; give me three men on a perimeter search.