|Affiliations:|| CIA, National Clandestine Service|
|Occupation(s):|| Navy Officer(formerly)|
Head of the National Clandestine Service(formerly)
McQuaid Security's Chief Intelligence Officer
Arthur Campbell is the former head of the National Clandestine Service. He is married to Joan Campbell.
Not much is known about Arthur's life before he became the head of the National Clandestine Service except that he attended Annapolis and that he was a member of the Navy prior to joining the CIA. In season four episode two, Arthur revealed that during his first overseas tour, he met and fell in love with a girl named Anna Sophia. She became pregnant (something he did not know until he was in the middle of the Pacific).
Arthur and Joan have a contentious relationship at work and at home. Their high-ranking roles within the CIA create friction and they often disagree on how to direct operations and deal with their agents. Despite this they do deeply love each other and they have a young son named MacKenzie Campbell.