Jack Carter

Jack Carter is a formal U.S. Marshal and the sheriff of Eureka.

Personal Life
On his first visit to Global Dynamics, it was revealed that he has a Class 1 Misdemenor on his record.

He is a fan of baseball. His first night in S.A.R.A.H., he watched a recording of that day's Indiana game.

Allison Blake
Allison Blake and Carter have a flirtatious relationship from the first time they meet onward. At times, the flirtation is accidental and made through a variety of verbal misunderstandings.

Beverly Barlow
Beverly Barlow was apparently interested in Carter, at least on a sexual level, the first week that he is in Eureka but the relationship does not progress beyond basic sexual tension.