Sam Campbell

 is an FBI Deputy Director based in Washington, DC.

Character Profile
Campbell addressed Mike Warren's graduating class of new FBI agents. He impressed upon them that they "will make mistakes, they will not be perfect and they will fail". But he also told them that he hopes they "have the brains and the luck to survive" their failures.

Campbell is also the agent who tells Mike the true nature of his assignment at Graceland: Mike is there to investigate Briggs.