- Season 1 - Chicago P.d.

as Detective Jay Halstead: An ex-Army Ranger and Lindsay's partner.

The season balances high-stakes criminal investigations with the personal dramas of the squad: Key Plot Points Chicago P.D. - Season 1

as Officer Adam Ruzek: A rookie recruited straight from the academy by Olinsky. as Detective Jay Halstead: An ex-Army Ranger and

as Detective Sheldon Jin: The unit's tech and surveillance expert. Chicago P.D. - Season 1