|Affiliation||Chicago Police Department|
|Family|| William Halstead (brother)|
Pat Halstead (father)
|Actor||Jesse Lee Soffer|
|First Appearance||"Chicago Crossover" (on Law & Order: Special Victims Unit)|
Jay Halstead is a detective assigned to the Intelligence Section of the Chicago Police Department under Sergeant Hank Voight. His investigations sometimes overlay with those of Manhattan Special Victims Unit.
- Chicago Fire (2 seasons, 11 episodes)
- Chicago P.D. (3 seasons, 61 episodes)
- Law & Order: Special Victims Unit (1 season, 2 episodes)
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